Related Clues:
- Unhappy after short vacation in cave
- Dent; echoey
- Like the Acropolis
- Attic in which old lady hides gems from the east
- How insincere words ring
- Channel 50: see Doctor Who outside
- 75% of prison is empty
- Caved-in pit
- An empty space within
- Such characters provide openings for solving the longest clues here