| SCINTILLATION | A flash of light |
| SPARK | Word for a tiny particle of fire; a flash of light; a bright sprightly person; or, a flicker of emotion (5) |
| GLEAM | Mingle a moment with a flash of light |
| BEAM | Exist one morning as a flash of light |
| WINK | A nictate indicating a greeting, joke, secret etc; a counter flicked with a squidger in a game; a nap; an instant; or, a flash of a headlight (4) |
| FLICKER | A quiver of a flame, light or a television image; a tiny movement of an eye; any brief moment; or, a flash of an emotion, such as hope (7) |
| BOLT | A roll of fabric or wallpaper as a unit of measurement; the world's fastest man; or, a flash of lightning (4) |
| SPRITE | From "breath", word for an elf, sylph or water fairy, thus a dainty or impish person; otherwise, a blue riverdamsel; a flash of red lightning; a green woodpecker; or, a spayed ferret (6) |
| STREAK | A flash of lightning or the course or line it takes; a swift dash; or, a band of contrasting colour (6) |
| GREEN | Colour of the flash of light sometimes seen around the moment of sunrise or sunset (5) |
| SUNBURST | A flash of resplendent solar light emanating through broken clouds; or, a begemmed brooch, design, jewel, ornament, pattern etc, resembling the rayed "daystar" in its splendour (8) |
| GLINT | Small flash of light from general's coat in front of troops (5) |
| TRICE | Flash of light close to food (5) |
| LIGHTNING | Natural flash of light |
| RAY | Narrow flash of light (3) |
| NOVA | Flash of light from deep space |
| GLIMMER | Inkling or brief flash of light |
| FLARE | Flash of light |
| THUNDER | A loud crackling noise after a flash of lightning (7) |
| ECLAIR | In French, a flash of lightning; in English, a cake filled with cream |
