Bail due for revision in hearing (7)
I believe the answer is:
audible
'in hearing' is the definition.
(I've seen this before)
'bail due for revision' is the wordplay.
'for revision' is an anagram indicator (I've seen this in other clues).
'bail'+'due'='baildue'
'baildue' anagrammed gives 'AUDIBLE'.
(Other definitions for audible that I've seen before include "Capable of being heard" , "that one can catch" , "Easily caught" , "Within earshot" , "not to be missed?" .)