| Rating | Solver | Clue |
|---|---|---|
| IN TURN | One by one | |
| SINGLY | One by one | |
| OUTDO | One-up | |
| LINEAR | One-dimensional | |
| LINEAL | One-dimensional | |
| UNILATERAL | One-sided | |
| PAST | One-time | |
| WAIT | One-time | |
| BLINKERED | One-eyed | |
| BIAS | One-sidedness | |
| BIASED | One-sided | |
| UNEQUAL | One-sided | |
| NOBODY | No-one | |
| ERSTWHILE | One-time | |
| UNIQUE | One-off | |
| UNREPEATABLE | One-off | |
| WITTICISMS | One-liners | |
| UNIPED | One-legged | |
| PONTOON | Twenty-one | |
| UNFAIR | One-sided | |
| PARTISAN | One-sided | |
| OO | One. | |
| OON | One. | |
| MONOTHALAMOUS | One-chambered. | |
| DOT | Just one...? | |