Related Clues:

• Hollow depression at the mouth of a volcano
• Credit after student leaves in depression
• 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
• Sunken place
• Breadwinner at last in to provide food bowl
• Evidence of a large impact