| Rating | Solver | Clue |
|---|---|---|
| PECULIARITY | Quirk | |
| ODDITY | Quirk | |
| TRAITOR | Quirk or quisling? | |
| ABNORMALITY | Quirk of nature | |
| FREAK | Quirk of nature | |
| FIRK | A freak; trick; quirk. | |
| QUIRKISH | Consisting of quirks; resembling a quirk. | |
| QUIRKED | Having, or formed with, a quirk or quirks. | |