| 100% | EMINENCEGRISE | 13 | A powerful and secret advisor |
| 51% | RAGING | 6 | Powerful and violent, like a torrent |
| 47% | EAGLE | 5 | Bird with a powerful soaring flight and keen sight |
| 46% | PASSWORD | 8 | A secret combination of letters and numbers |
| 46% | BLAB | 4 | Reveal a secret and regret? |
| 44% | INVISIBLEINK | 12 | Secret message technique ... and a hint to four puzzle clues |
| 44% | COLUMN | 6 | Fifth __, a secret and subversive group in wartime |
| 43% | PALACEINTRIGUE | 14 | Secret schemes within a powerful group |
| 42% | STASH | 5 | To store in a safe and secret place |
| 41% | MAGNETO | 7 | Marvel comics villain who is a powerful mutant and an adversary of the X-Men |
| 41% | PACKSAPUNCH | 11 | Has a powerful effect, or what each of 17-, 26-, 38- and 49-Across does, literally |
| 40% | ELIZABETHOLSEN | 14 | Actress who plays a powerful witch in Marvel's "Avengers" films and on 44-Across (2 wds.) |
| 40% | PAULBETTANY | 11 | Actor who plays a powerful android in Marvel's "Avengers" films and on 44-Across (2 wds.) |
| 39% | YODA | 4 | Wise and powerful Jedi Master in "Star Wars" whose weapon is a lightsaber |
| 39% | SLEEPERCELL | 11 | Operatives living in secret, and a hint to four squares in this grid |
| 39% | CLUE | 4 | Game whose "Discover the Secrets" version includes a baseball bat and a dumbbell |
| 39% | PANEL | 5 | A secret one sometimes slid aside and led to secret rooms or down into the dungeons |
| 38% | DISAPPEARINGINK | 15 | Medium for secret messages, and a hint to making sense of 12 Down answers |
| 38% | LEONINE | 7 | Powerful and dignified |
| 38% | FORMIDABLE | 10 | Powerful and capable |
| 38% | STRONG | 6 | Powerful and muscular |
| 38% | THERANOS | 8 | Company in the book Bad Blood: Secrets and Lies in a Silicon Valley Startup |
| 38% | MARY | 4 | ___, Dickon, and Colin, characters from the book "The Secret Garden" who had a memorable friendship |
| 38% | NBAJAM | 6 | Game with a secret additional roster of players that includes Bill Clinton and Al Gore |
| 37% | DESPOT | 6 | Powerful and tyrannical ruler |
| 37% | POOHBAH | 7 | Powerful and influential person |
| 37% | MOGUL | 5 | Powerful and influential person |
| 37% | ALLURING | 8 | Powerful and fascinating; magnetically attractive |
| 37% | MAKO | 4 | Powerful and fast-swimming shark |
| 37% | SUPERNOVA | 9 | Powerful and luminous stellar explosion |