| Answer | Crossword Clue |
|---|---|
| ECHO | Sound in a tunnel |
| WHOOSH | Wind-tunnel sound |
| TRAM | Carrier in a tunnel |
| MOLED | Dug a tunnel in |
| ADIT | Tunnel in a mine. |
| CALL | Thing often dropped in a tunnel |
| ECHO | It may be heard in a tunnel |
| DAYLIGHT | 1996 Sylvester Stallone disaster movie set in a tunnel under the Hudson River |
