Kind of talk more cordial than a tete-a-tete? (5-2-5)

I believe the answer is:

heart-to-heart

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'kind of talk' is the definition.
(I've seen this in another clue)

I don't understand the rest of the clue.

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

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

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