| QUICKONTHEDRAW | Prompt in response, like an efficient cartoonist? (5,2,3,4) |
| STEAMTIGHT | Mates playing, drunk, like an efficient old machine (10) |
| AERATED | Like an efficient appliance, holding energy at boiling point? (7) |
| ANTIGEN | It stimulates an immune response like gargling neat gin (7) |
| FAULT | Boris' go-to response, like a wild, flaunty tom (3,2,5) |
| NOTMY | Boris' go-to response, like a wild, flaunty tom (3,2,5) |
| HAHA | Response like 31 Down |
| RUNATIGHTSHIP | Be in control of an efficient organisation (3,1,5,4) |
| WELL | It may supply water in an efficient manner |
| JUMPINTHESHOWER | Do aerobic exercises in an efficient but dangerous manner? |
| TOMAHAWK | An efficient killer in brave hands |
| ERGONOMICALLY | A grimy colonel moved in an efficient way (13) |
| KEEPUP | Maintain in an efficient state (4,2) |
| ABLY | Probably it's only half in an efficient way (4) |
| REFLEXES | Automatic responses, like knee jerks |
| AUTOCUE | Speaker’s prompt in announcing: “Reverse of alchemical process ending in failure” |
| SAQUESTION | Pedagogical prompt, in a txt msg? |
| URGE | Prompt, in a way |
| BILLIARDSCUE | Prompt in "The Hustler"? |
| CUE | Prompt in summoning rescuers (3) |
