Muscular -- like some bully? (5)
I believe the answer is:
beefy
I believe this clue is a double definition.
'muscular' is the first definition.
(I've seen this in another clue)
'like some bully?' is the second definition.
(I've seen this before)
(Other definitions for beefy that I've seen before include "Burly" , "Muscularly well-developed" , "Athletic and muscular (non-vegetarian?)" , "Brawny" , "Muscular, robust" .)