Gosh, said the crow! (3)

I believe the answer is:

caw

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'the crow' is the definition.
(thesaurus)

I cannot understand how the remainder of the clue works.

(Other definitions for caw that I've seen before include "Call like rook" , "Rook's call" , "Harsh cry of a crow" , "Crow utterance" , "Sound made by a crow, say" .)

I've seen this clue in the Evening Standard.

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