| 100% | STEGOSAUR | 9 | Herbivorous dinosaur of Jurassic and early Cretaceous times with an armour of bony plates |
| 27% | EPA | 3 | Org. with an Office of Air and Radiation |
| 27% | IGUANODON | 9 | Genus of large herbivorous dinosaurs of the Cretaceous period |
| 27% | EPA | 3 | Org. with an Office of Wetlands, Oceans and Watersheds |
| 26% | EPA | 3 | Government group with an Office of Air and Radiation: Abbr. |
| 26% | RETRO | 5 | Of an earlier time |
| 26% | EPA | 3 | Government org. with an Office of Chemical Safety and Pollution Prevention |
| 25% | ROSEN | 5 | Physicist Nathan with an early theory of wormholes |
| 25% | ARMADILLO | 9 | Mammal with sharp claws and bony plates all over |
| 25% | UNI | 3 | Prefix with "verse" for all of space and time |
| 25% | CPA | 3 | Kind of exam with an "Auditing and Attestation" section |
| 25% | BUILTUP | 7 | Describes an area with lots of homes and offices |
| 25% | NCAA | 4 | Org. with an Inspiration Award and an Award of Valor |
| 25% | STAMEN | 6 | Male part of a flower with an anther and stalk |
| 25% | LAND | 4 | "___ of the Lost" (TV series with dinosaurs and Sleestak) |
| 24% | VANESSA | 7 | Redgrave with an Oscar, a Tony and a pair of Emmys |
| 24% | COBRA | 5 | Venomous snake of Africa and Asia with an inflatable neck hood |
| 24% | TYSON | 5 | Cicely with an honorary Oscar and a Presidential Medal of Freedom |
| 24% | SUNDIAL | 7 | Time-telling device with a plate and a gnomon |
| 24% | SPR | 3 | Time of yr. with Earth Day and Arbor Day |
| 24% | RETRO | 5 | Evocative of an earlier time, as fashion |
| 24% | TERM | 4 | Fixed and an official period of time |
| 24% | GROWING | 7 | With 41 Across, gradually-apparent problem ... and an explanation of the puzzle's circles? |
| 24% | OPEC | 4 | Gp. with an HQ in Vienna and an official language of English |
| 24% | INSECT | 6 | An invertebrate with six legs and a pair of wings |
| 24% | MODERNISTIC | 11 | Remake of the 1995 film "Crimson Tide" with an aesthetic evoking early 20th-century art? |
| 24% | TAPIR | 5 | Mammal of South and Central America and SE Asia with an elongated snout |
| 24% | TAPIR | 5 | Mammal of South and Central America and southeast Asia with an elongated snout |
| 24% | ACRE | 4 | House comes with three quarters of an ____ and is situated near a river. |
| 24% | REM | 3 | Band with the albums "Out of Time" and "Green" |