Auricle (3)
I believe the answer is:
ear
'auricle' is the definition.
(I know that auricle can be written as ear)
This is all the clue.
(Other definitions for ear that I've seen before include "Ability to recognise sounds" , "Go astray" , "Bit of corn" , "Lug (colloq.)" , "Lend one and listen" .)