Crossword Genius

Volcanic basin (7)

Ross

I believe the answer is:

caldera

(Other definitions for caldera that I've seen before include "Result of eruption" , "Large volcanic crater -- lead car (anag)" , "Large volcanic crater - race lad (anag)" , "Big hole in rock" , "Basin-shaped crater at top of volcano" .)

I've seen this clue in The Sun.
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