| Answer | Crossword Clue |
|---|---|
| DIGS | Excavates |
| DIGS | Excavates. |
| MINES | Excavates |
| RIGS | Excavates again |
| DEEPENS | Excavates further |
| TUNNELS | Excavates, in a way |
| roadheader | a tunnelling machine used in mining that excavates with a combination of cutting blades and high-pressure water jets |
| roadheaders | ROADHEADER, a tunnelling machine used in mining that excavates with a combination of cutting blades and high-pressure water jets |
