Candid talk in centre -- listen with child outside (5-2-5)

I believe the answer is:

heart-to-heart

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'candid talk' is the definition.
(a heart-to-heart is an intimate conversation)

'centre listen with child outside' is the wordplay.
'centre' becomes 'heart' (synonyms).
'listen with' becomes 'hear' (I've seen this before. I am not sure about the 'with' bit.).
'child' becomes 'tot' (tot is a kind of child).
'outside' is an insertion indicator.
'hear' going inside 'tot' is 'toheart'.
'heart'+'toheart'='HEART-TO-HEART'

'in' acts as a link.

Can you help me to learn more?

(Other definitions for heart-to-heart that I've seen before include "Intimate conversation" , "Intimate talk" , "Candid conversation" .)

I've seen this clue in The Telegraph.

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