underground or underwater passage
| TUNNEL |
| Word | Clue |
|---|---|
| WAY | passage, channel |
| WIRE | barbed or chicken |
| AGENT | insurance or travel |
| ALLEY | back-passage, by-way |
| BRAND | Audi or Porsche |
| COURT | appellate or supreme |
| DANCE | tango or flamenco |
| FLUID | water or petroleum |
| METRO | underground railway |
| MOTOR | diesel or stepping |
| ORDER | fungus or stop-loss |
| PARTY | Republican or Conservative |
| POWER | solar or of will |
| RIVER | Neva or Mekong |
| TRACK | way, passage |
| TRAVEL | journey, passage |
| VOYAGE | passage |
| JOURNEY | passage, pilgrimage |
| TORPEDO | self-propelled underwater weapon |
| SUBMARINE | boat that can go underwater |
| METRO | underground |
| TUNNEL | underground passage |