Heart to heart listener (3)
I believe the answer is:
ear
'listener' is the definition.
(body part which hears or listens)
'heart to heart' is the wordplay.
'heart' says to take the centre.
The centre of 'heart' is 'EAR'.
(Other definitions for ear that I've seen before include "Sense organ" , "Auricle" , "Musical ability" , "Appreciation of sounds" , "Aural organ" .)