| Answer | Crossword Clue |
|---|---|
| SEWER | Part of an underground network |
| ROOT | Part of an underground network? |
| GASMAIN | Part of an underground network |
| IRISHPOTATO | Part of an underground spring crop |
| ROOT | Part of the underground? |
| CATACOMB | Part of Rome's underground |
| ROOT | Underground part of a plant |
| ORE | Part of the underground economy? |
| IRT | Part of N. Y. C.'s "Underground." |
