| GIVESONESWORD | Promises, but donates only a single weapon |
| KEEPONESWORD | Fulfil a promise to retain just a single weapon (4,4,4) |
| ONESWORD | In a manner of speaking, one may give a single weapon like this |
| BREAKONESWORD | Fail to keep a promise to destroy a single weapon (5,4,4) |
| GIVE | and 4dn, Promise to donate a single weapon (4,4,4) |
| GIVEONESWORD | and 4dn, Promise to donate a single weapon (4,4,4) |
| CALIGULA | Single weapon briefly in contact with a Roman emperor (8) |
| ASSEGAI | Dull person takes a long time to return single weapon (7) |
| BAYONET | Bark time, holding single weapon (7) |
| GRANTEE | Unitary Authority abandons promise but he's awarded money (7) |
| OBEAH | Be involved in solemn promise - but have no time for sorcery |
| ONEACT | Having only a single section, as a short play: Hyph. |
| FAUNTLEROY | Lord, a boy fortunately hurt only a single time |
| UNIPOLAR | Relating to a only a single extremity |
| HIJAB | A cover-up in hospital: only a single vaccination |
| ONEHORSE | A town so small it has only a single equine animal |
| SMACK | With only a single vowel squarely in the middle, that's a blow! (5) |
| MONO | Having only a single channel |
| RUN | Only a single, dash it! (3) |
| ONCE | Only a single time (4) |