Suspect due bail in hearing (7)
I believe the answer is:
audible
'in hearing' is the definition.
(capable of being heard)
'suspect due bail' is the wordplay.
'suspect' indicates anagramming the letters (a suspicious or unusual spelling).
'due'+'bail'='duebail'
'duebail' with letters rearranged gives 'AUDIBLE'.
(Other definitions for audible that I've seen before include "that one can catch" , "Within earshot" , "Loud enough to be heard" , "not to be missed?" , "Bail due (anag.)" .)