Crossword Genius

Bully, perhaps, volunteers what everyone passes (7)

Ross

I believe the answer is:

taurine

'bully perhaps' is the definition.
(taurine means like a bull)

'volunteers what everyone passes' is the wordplay.
'volunteers' becomes 'ta' (abbreviation for Territorial Army).
'what everyone passes' becomes 'urine' (everybody passes urine).
'ta'+'urine'='TAURINE'

(Other definitions for taurine that I've seen before include "Bullish" , "Resembling a bull" , "Nature I associate with bull-like quality" , "organic compound" , "Ruinate, being like bull" .)

I've seen this clue in The Times.
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