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 the answer is hidden in the clue (I've seen 'heart of' mean this).
'EAR' is hidden in the letters of 'heart'.

(Other definitions for ear that I've seen before include "Sense organ" , "Auricle" , "Musical ability" , "Appreciation of sounds" , "Aural organ" .)

I've seen this clue in the Evening Standard and The Globe and Mail.

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