| ROOMER | Transient of a sort |
| PULSE | Burst mode of a food processor; life-force, rhythm or tactus of a piece of music; a heartbeat; or, a transient electromagnetic disturbance (5) |
| SURGE | From the Latin meaning "to rise", a sudden transient movement of a crowd, increase in power or rush of emotion; the rolling swell of the sea; or, a billowing cloud (5) |
| SPRITE | A transient luminous event in the form of a bright red flash occurring above the cumulonimbus cloud of a thunderstorm; or, an elf-, fairy- or pixie-like being (6) |
| EPHEMERA | A mayfly or a class of short-lived paper-based collectable items whose etymological root, "lasting only a day", highlights their transient nature (8) |
| GLEAM | From "glow-worm", word first for a bright/brilliant light such as a sunbeam, but now a dim or transient glow (5) |
| PASSING | Feature of football game of a transient nature (7) |
| BIRDSOFPASSAGE | GPs' boss afraid possibly over European visitors of a transient sort (5,2,7) |
| TIDAL | Of a transient seaside pool (5) |
| MIGRANT | Transient moneymaker having a grasp of the rag trade (7) |
| SPARKGAP | A term for the space between two electrodes across which a transient discharge passes (5,3) |
| BIRDOFPASSAGE | A transient visitor |
| APNEA | Transient cessation of respiration |
| ATTEMPT | Try a transient employee in race |
| NOVA | Star of transient high brilliance |
| FLEETING | Transient, as ships in middle of night |
| VAGRANT | Transient sort |
| FIREBALL | Dismiss dance as a transient flashy thing (8) |
| APNOEA | Transient cessation of breathing (6) |
| METEOR | A transient fiery streak in the sky. (6) |
