| CORE | "Rotten to the ___" ("Descendants" song) |
| CORE | 17-Across + 18-Across = 19-Across |
| CORE | 1993 Paul Preuss sci-fi novel |
| CORE | Ab day workout target |
| CORE | Ab workout target |
| CORE | Abdominal and lower-back muscles, collectively |
| CORE | Abs and such |
| CORE | Abs are part of it |
| CORE | Apple center |
| CORE | Apple center (fruit or computer) |
| CORE | Apple discard |
| CORE | Apple eater's discard |
| CORE | Apple junk |
| CORE | Apple leftover |
| CORE | Apple leftover that is discarded |
| CORE | Apple middle |
| CORE | Apple or reactor part |
| CORE | Apple part |
| CORE | Apple refuse |
| CORE | Apple remnant |
| CORE | Apple residue |
| CORE | Apple seeds' location |
| CORE | Apple seeds' site |
| CORE | Apple throwaway |
| CORE | Apple's center |
| CORE | Apple's center that gets tossed out |
| CORE | Apple's central leftover |
| CORE | Apple's inner part |
| CORE | Apple's leftover |
| CORE | Apple's middle |
| CORE | Apple's remnant |
| CORE | Apple-seed holder |
| CORE | Apple’s centre |
| CORE | Area of the body strengthened by planks |
| CORE | Baked-apple removal |
| CORE | Blimey! England is central |
| CORE | Body region with abs |
| CORE | Bridge exercises work it |
| CORE | Center |
| CORE | Center of a Granny Smith apple |
| CORE | Center of a golf ball or a pear |
| CORE | Center of a pineapple |
| CORE | Center of an apple |
| CORE | Center of some fruits |
| CORE | Center of something, like an apple |
| CORE | Center of the Earth |
| CORE | Center of the Earth or an apple |
| CORE | Center of the body, to a fitness instructor |
| CORE | Center of the earth |
| CORE | Center of the planet |
| CORE | Central and fundamental part of something |
| CORE | Central part |
| CORE | Central part of fruit |
| CORE | Central section |
| CORE | Central, innermost part |
| CORE | Centre |
| CORE | Centre of an apple |
| CORE | Centre of the Earth |
| CORE | Centre or foundational part of something |
| CORE | Civil rights org. HQed in NYC and headed by Roy Innis |
| CORE | Common ___ |
| CORE | Common ___ (controversial education initiative) |
| CORE | Common ___ (educational standards initiative) |
| CORE | Common ___ (set of educational standards) |
| CORE | Common ___ (set of teaching standards) |
| CORE | Compulsory courses |
| CORE | Computer memory |
| CORE | Crunches strengthen this |
| CORE | Crux |
| CORE | Curriculum part |
| CORE | Delicious discard |
| CORE | Delicious leftover |
| CORE | Discard from an apple, say |
| CORE | Discarded apple part |
| CORE | Discarded part of an apple |
| CORE | Discarded part of an apple or pineapple |
| CORE | Earth's center |
| CORE | Earth's center and hottest part |
| CORE | Earth's deepest layer |
| CORE | Earth's hottest part |
| CORE | Earth's innermost layer |
| CORE | Earth's innermost part |
| CORE | Earth's nickel-iron center |
| CORE | Earth’s center |
| CORE | Eden throwaway |
| CORE | Ending for hard or norm |
| CORE | Essence |
| CORE | Essential meaning |
| CORE | Exercise target |
| CORE | Extremely hot innermost layer in the Earth's internal structure |
| CORE | Firm about middle |
| CORE | Firm about the middle |
| CORE | Firm around middle |
| CORE | Firm around the middle |
| CORE | Fission site |
| CORE | Fitness center? |
| CORE | Focus of some strengthening exercises |
| CORE | Foundational |
| CORE | Fruit throwaway |
| CORE | Fuji discard |
| CORE | Fuji or Gala center? |
| CORE | Fundamental |
| CORE | Geological sample |
| CORE | Geologist's sample |
| CORE | Gist |
| CORE | Granny Smith throwaway |
| CORE | Hard pineapple part |
| CORE | Heart |
| CORE | Heart of a Baldwin |
| CORE | Heart of a nuclear reactor |
| CORE | Heart of an apple |
| CORE | Heart of an apple? |
| CORE | Heart of something |
| CORE | Hollow out |
| CORE | Hottest Earth part |
| CORE | Hottest part of the earth |
| CORE | Inedible apple part |
| CORE | Inedible part of a pineapple |
| CORE | Inedible part of an apple |
| CORE | Inedible part of an apple or pineapple |
| CORE | Inner ___, Earth's hottest part |
| CORE | Inner part |
| CORE | Inner part of a pear |
| CORE | Inner workings |
| CORE | Innermost |
| CORE | Innermost area |
| CORE | Innermost layer of Earth |
| CORE | Innermost layer of the earth |
| CORE | Innermost part |
| CORE | Innermost part of an apple |
| CORE | James Farmer grp. |
| CORE | James Farmer's org. |
| CORE | Key |
| CORE | Kind of curriculum |
| CORE | Leftover part of an apple |
| CORE | Like some beliefs |
| CORE | Like some college curricula |
| CORE | Main or central part |
| CORE | Mandatory courses |
| CORE | McIntosh center |
| CORE | Middle |
| CORE | Middle Earth? |
| CORE | Middle earth? |
| CORE | Middle of a pear |
| CORE | Middle of an apple |
| CORE | Most important |
| CORE | Muscle group targeted by Pilates |
| CORE | Muscles strengthened by Pilates |
| CORE | Muscles targeted by Pilates |
| CORE | Muscles targeted by a dead bug (Wait ... what?!) |
| CORE | Nature, figuratively |
| CORE | Nitty-gritty |
| CORE | Nub |
| CORE | Nuclear reactor component |
| CORE | Nuclear reactor part |
| CORE | Nucleus |
| CORE | Oft-discarded part of an apple |
| CORE | Part of a big apple that the squirrels and crows will eat, even if you don't |
| CORE | Part of a planet |
| CORE | Part of a reactor |
| CORE | Part of an apple |
| CORE | Part of an apple or a person |
| CORE | Part of an apple or a planet |
| CORE | Part of an apple or the earth |
| CORE | Part of an apple … or an Apple computer |
| CORE | Part of the Earth |
| CORE | Part of the body including the abs |
| CORE | Part of the body targeted by planks and crunches |
| CORE | Part of the body where the abs and obliques are |
| CORE | Part of the earth |
| CORE | Pear center |
| CORE | Pear discard |
| CORE | Pilates target |
| CORE | Pilates workout focus |
| CORE | Pineapple center |
| CORE | Pineapple discard |
| CORE | Pineapple eater's discard |
| CORE | Pineapple's center |
| CORE | Pith |
| CORE | Place for seeds |
| CORE | Planet's center |
| CORE | Planetary center |
| CORE | Planking target |
| CORE | Planks can strengthen it |
| CORE | Reactor meltdown site |
| CORE | Reactor part |
| CORE | Required courses |
| CORE | Rights org. |
| CORE | Rights org. estab. 1942 |
| CORE | Rotten to the ___ |
| CORE | Rotten to the ___ (very dishonest) |
| CORE | Roy Innis's org |
| CORE | Roy Innis's org. |
| CORE | Roy lnnis's org. |
| CORE | Seedy center of an apple |
| CORE | Seedy part of an apple |
| CORE | Seedy place? |
| CORE | Set of classes all students must take |
| CORE | Set of required courses |
| CORE | Situp's target |
| CORE | Spot for abs or apple seeds |
| CORE | Suffix for "hard" or "cottage" |
| CORE | Target of planks |
| CORE | Target of planks and crunches |
| CORE | Target of some workouts |
| CORE | Target of strengthening exercises |
| CORE | The earth's center |
| CORE | The earth's hot center |
| CORE | The hot center of the earth |
| CORE | The innermost part of the Earth |
| CORE | The very heart |
| CORE | Torso muscles, as a whole |
| CORE | Torso muscles, collectively |
| CORE | Uneaten apple part (usually) |
| CORE | Uneaten center of an apple |
| CORE | Uneaten part of an apple |
| CORE | Very center |
| CORE | What planks, Russian twists and mountain climbers help to exercise |
| CORE | What sit-ups and crunches exercise |
| CORE | Where a pear's seeds are |
| CORE | Where heat is generated in a nuclear reactor |
| CORE | Word before curriculum or meltdown |
| CORE | Word that can go before "curriculum" or "values" |
| CORE | Workout focus |
| CORE | ___ curriculum |
| CORE | ___ curriculum (list of courses taken by all students) |
| CORE | ___ curriculum (set of classes taken by all students) |
| CORE | ___ curriculum (set of courses taken by all students) |
| CORE | *Center |
| CORE | *Earth heart |