| MAISONETTE | Flat, perhaps a semitone off, keeping time (10) |
| AUGMENTING | Increasing by a semitone (10) |
| SHARPENING | Sing about instrument in French, going up a semitone (10) |
| ACCIDENTAL | Cacti lend a different look to a flat, perhaps (10) |
| SWEATPANTS | Joggers set swan off, keeping fit backfired (10) |
| SAFARIPARK | Having set off, keeping at a distance, one observed lions here |
| NOTEWORTHY | Signal shown in flat, perhaps, by mayor (10) |
| REINFLATED | fixed a flat, perhaps |
| REPETITIVE | Rob in Edinburgh being shown round small flat, perhaps |
| FLAT | In music, a character that lowers a note a semitone |
| EMIT | Throw out by a fraction of a semitone (4) |
| SHARPEN | Raise it by a semitone to make a point (7) |
| SHARP | In music, a note raised a semitone above natural pitch (5) |
| FALLINGFLAT | Johnny lowered the note by a semitone. 'That sounds bad, too!' he cried. 'It's ___ like a bad comic' |
| MINOR | Of a scale, having intervals of a semitone between the second and third and fifth and sixth degrees (5) |
| MAJOR | Of a musical scale, having an interval of a semitone between the third and fourth and the seventh and eighth notes (5) |
| STARTLE | Alarm's gone off, keeping right time (7) |
| AWRY | Way off, keeping right off course |
| FLAMBOROUGHHEAD | Riding site made Balfour go off keeping a couple of horses |
| DFLAT | A semitone above C |
