Crossword Genius

Deep sea fish (4)

Ross

I believe the answer is:

bass

I believe this clue is a double definition.

'deep' is the first definition.
('bass' can be a synonym of 'deep')

'sea fish' is the second definition.
(bass is a kind of sea fish)

(Other definitions for bass that I've seen before include "Sea perch - male voice" , "Fish for the low-voiced" , "Large fish - singer" , "bottom of sound?" , "Low singing voice" .)

I've seen this clue in The Telegraph and The Globe and Mail.
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