Lend an ear (6)
I believe the answer is:
listen
'lend an ear' is the definition.
(to lend someone an ear is to listen to them)
This is the entire clue.
(Other definitions for listen that I've seen before include "16 (anag.)" , "Tinsel (anag.)" , "Be silent in order to hear" , "Follow advice" , "Pay heed (to advice)" .)