Does it taste like beef? (6)

I believe the answer is:

grouse

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'beef?' is the definition.
(synonyms)

I don't understand how the rest of the clue works.

(Other definitions for grouse that I've seen before include "Complain like game bird" , "Complain like gamebird" , "Petty complaint" , "Grumble; game bird" , "1D [GAMEBIRD] < having grumble" .)

I've seen this clue in the Evening Standard.

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