Creature included in the name of whisky first made by the Gloag family (6)

I believe the answer is:

grouse

(Other definitions for grouse that I've seen before include "Bird - complaint" , "Grumble; game bird" , "Complain like gamebird" , "excellent in New Zealand" , "Petty complaint" .)

I've seen this clue in The Sunday Times and The Times.

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