Lug out of the arena (3)
I believe the answer is:
ear
'lug' is the definition.
(I've seen this before)
'out of the arena' is the wordplay.
'out of' says the answer is hidden in the clue.
'EAR' is hidden in the letters of 'the arena'.
(Other definitions for ear that I've seen before include "See 8" , "Van Gogh missing body part" , "'Give every man thine ..., but few thy voice'/Hamlet" , "Lend one and listen" , "Head of grain" .)