Crossword Genius

Vast and hollow (9)

Ross

I believe the answer is:

cavernous

'vast and hollow' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for cavernous that I've seen before include "like a big pit" , "Roomy" , "of large underground chambers" , "Gaping" .)

I've seen this clue in the Sydney Morning Herald.
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