Ringing in the ears (8)
I believe the answer is:
tinnitus
'ringing in the ears' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for tinnitus that I've seen before include "Condition in which there is constant ringing in the ears" , "Hearing affliction" , "Hearing ailment" , "problem for audience" , "annoyance to the ear" .)