| Answer | Crossword Clue |
|---|---|
| CLOG | Drain obstruction |
| ROOT | Potential drain obstruction |
| unblocking | Remove an obstruction from (something, esp. a pipe or drain) |
| unblock | Remove an obstruction from (something, esp. a pipe or drain) |
| unblocks | Remove an obstruction from (something, esp. a pipe or drain) |
| unblocked | Remove an obstruction from (something, esp. a pipe or drain) |
