| Answer | Crossword Clue |
|---|---|
| GRAY | Light black |
| UVLAMP | Black light, briefly |
| IDEA | Black cloud : anger :: light bulb : .. |
| GLOWS | Reacts to a black light |
| FLUORESCE | Glow under a black light |
| GLOWS | Is affected by black light, perhaps |
| EVENTHORIZON | Point beyond which light cannot escape from a black hole |
