| Answer | Crossword Clue |
|---|---|
| KNEE | ....-deep (heavily involved) |
| KNEE | ..-deep (heavily involved) |
| INDEEP | Heavily involved |
| KNEEDEEP | Heavily involved (in) |
| TOONES | Up ... ears (heavily involved). |
| INTOO | ... deep (over-involved) |
| CHESSMATCH | Deep Blue was involved in one |
