| Answer | Crossword Clue |
|---|---|
| TEN | Countdown start |
| TEN | Countdown start, often |
| TEN | Common countdown start |
| TEN | Start of a countdown |
| TEN | Start of a countdown, often |
| THREE | Start of a quick countdown |
| TEN | Start of many a countdown |
| TEN | Start of a countdown, perhaps |
| NUMBERTEN | Start of a David Letterman countdown |
| TEN | Start of the end of a countdown |
