Related Clues:
- Hollow depression at the mouth of a volcano
- Thameside town
- Credit after student leaves in depression
- A suburb in London - but a town in Yorkshire?
- Result of a meteor strike
- Consider filling about right for dip
- Huge hole right behind box
- Deserter hiding in oddly clear hollow
- Drop spectacularly
- Sign of a big rock hit?
- Oregon lake where you can drive around the rim
- Large hole in case presented by barrister at the end
- Hollow container by river
- Result of bombing run by old plane
- Huge depression