Report of examination relating to the ears (5)
I believe the answer is:
aural
'relating to the ears' is the definition.
(relating to hearing)
'report of examination' is the wordplay.
'report of' shows a homophone (sound like).
'examination' becomes 'oral' (oral examination is a kind of examination).
'oral' is a homophone of 'AURAL'.
(Other definitions for aural that I've seen before include "Relating to sense of hearing" , "Relating to the hearing organs" , "musical perception" , "of the listener" , "To do with hearing or the ears" .)