Related Clues:
- Subway, basically
- Ancient burial place
- Lost coat and money in taxi to old place of burial
- Animal on a hunt through tunnel
- Means of escaping prison, maybe
- Ant farm passageway
- Coach retires and opens warehouse and yard by underpass
- Period before Easter revolves around a foreign means of escapism perhaps
- New York railway
- Certain sandwich chain
- Really dig?
- Cold current in a vault, one of many here?
- Be boring, perhaps
- Vessel with some honey in crypt
- Underground alcoved tunnel for burying the dead