| 100% | HAREBRAINEDIDEA | 15 | What human flight was once thought to be |
| 54% | ATOM | 4 | It was once thought to be indivisible |
| 51% | MANDRAKE | 8 | Herb once thought to be an aphrodisiac |
| 50% | SEAHOLLY | 8 | European coastal plant once thought to be an aphrodisiac |
| 50% | WEST | 4 | What was once due to American pioneers? |
| 48% | MAD | 3 | What Hamlet is thought to be, or not to be |
| 46% | GODSGIFT | 8 | What a Don Juan thinks he is to women |
| 43% | IDEAS | 5 | Thoughts or suggestions as to what should be done |
| 42% | MEANDMYSHADROE | 14 | What a person about to eat fish eggs might be thinking? |
| 42% | TRUCKDRIVER | 11 | What each of the answers to the starred clues once was |
| 41% | EBONY | 5 | Dark wood once used for drinking cups, as it was thought to neutralize poison |
| 41% | DEEMED | 6 | Thought to be |
| 41% | DEEM | 4 | Think to be |
| 41% | REKEYED | 7 | What lost computer data may need to be |
| 41% | TOAD | 4 | What a tadpole might grow up to be |
| 41% | EWE | 3 | What a yeanling may grow up to be |
| 41% | RRATED | 6 | What you'd expect horror films to be |
| 41% | SWAN | 4 | What the ugly duckling grew up to be |
| 41% | EWE | 3 | What a female lamb grows up to be |
| 41% | INKY | 4 | What you'd expect a press to be |
| 41% | MANX | 4 | Breed once thought by some to be a cross between a cat and a rabbit |
| 40% | LEONARDO | 8 | Kate is to Rose what he is to Jack, think Titanic |
| 40% | ESPTESTS | 8 | Reasons to ask, ''What was I thinking?'' |
| 40% | ALONE | 5 | What Garbo ''vanted'' to be |
| 39% | ESKIMOS | 7 | What the Inuit were once called |
| 39% | STEPFORMAN | 10 | "One small ____, one giant leap for mankind," what 31a was initially thought to have said upon landing on the Moon: 3 wds. |
| 39% | BAPTIST | 7 | Thought to be Jesus' cousin, John the __ |
| 39% | SKEET | 5 | What President Obama was once photographed shooting |
| 39% | MAMMALS | 7 | What humans, horses and hamsters all are |
| 39% | MONEY | 5 | What cowry shells were once used as |