What a jury looks for out of hearing? (10)
I believe the answer is:
soundproof
'out of hearing?' is the definition.
(soundproof means preventing hearing)
'what a jury looks for' is the wordplay.
I cannot quite understand how this works, but
'for' could be 'pro' (as in being 'pro' something) and 'pro' is located in the answer.
This explanation may well be incorrect...
(Other definitions for soundproof that I've seen before include "avoiding another hearing" , "keeping the racket inside?" , "intended to stop hearing" , "Such a quiet room" , "Bar racket" .)