| Answer | Crossword Clue |
|---|---|
| ATEST | Underground explosion, for one. |
| CICADA | One might live underground for 17 years |
| NICO | One-named singer for the Velvet Underground |
| NICO | One-named singer for the 1960s Velvet Underground |
| ATEST | Underground explosion |
| MINER | One who's gone underground? |
| DIG | One way to get underground |
| MINER | One involved with underground rock bands? |
| DETERMINER | One concluding check on underground worker (10) |
| NICO | One-named singer with the 1960s Velvet Underground |
