| TRILATERAL | Sideways attempt first said to be involving three sides |
| FILIPINO | I know Philip first said to be one from Manila (8) |
| ESSAYIST | Attempt - first one producing a piece of writing |
| SHOT | Scoring attempt (... first two letters) |
| TRIANGULAR | Gran joins ritual dancing involving three people? (10) |
| SEXPARTITE | Endless orgy that is, over time, involving three couples? (10) |
| TRIPARTITE | Involving three participants (10) |
| HYPOTENUSE | Southey with pen composed one of three sides (10) |
| BLASE | Bored to be involving the Spanish (5) |
| OBTUSE | Stupid to be involving ourselves in (6) |
| ISLEOFDOGS | A district in the East End of London, bounded on three sides by the River Thames (4,2,4) |
| ARNO | Cartoonist who first said "back to the old drawing board" |
| ORIGINAL | First said about one form of rummy |
| NYEBEVAN | Onset of virus detectable in pulse first, said close NHS source (3,5) |
| SOMEONE | Aggregate came first, said no one in particular (7) |
| DISAPPEARED | Editor, having first said paper was wrong, vanished (11) |
| SEANCONNERY | Actor who first said "Bond, James Bond" |
| BONDJAMESBOND | Film line first said by Connery |
| KARLMARX | Who first said "Religion...is the opium of the people"? (4,4) |
| HAROLDWILSON | Who first said "A week is a long time in politics"? (6,6) |
