He has a warm heart, we’re told (4)

I believe the answer is:

hear

I'm a little stuck... Click here to teach me more about this clue!

'we're told' is the definition.
I can't tell whether this defines the answer.

'he has a warm heart' is the wordplay.
'has' means one lot of letters go next to another.
'heart' indicates the central letters.
The centre of 'warm' is 'ar'.
'he'+'ar'='HEAR'

Can you help me to learn more?

(Other definitions for hear that I've seen before include "Pick up, aurally" , "Listen to" , "attend" , "Perceive sound" , "receive information" .)

I've seen this clue in the Evening Standard.

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