Good cut of meat — beef? (5)

I believe the answer is:

grump

'beef?' is the definition.
(I've seen this before)

'good cut of meat' is the wordplay.
'good' becomes 'g' (abbreviation).
'cut of meat' becomes 'rump' (rump is a kind of cut of meat).
'g'+'rump'='GRUMP'

(Other definitions for grump that I've seen before include "Beef" , "Sulky type" , "Sulky person" , "pet?" , "grouse" .)

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

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