Nice heads hosting adult conversation? (4-1-4)
I believe the answer is:
tete-a-tete
'conversation?' is the definition.
(I know that tete-a-tete is a type of conversation)
I don't understand the remainder of the clue.
(Other definitions for tete-a-tete that I've seen before include "Private conversation between two people as in France" , "One-to-one meeting" , "Private conversation between two French people" , "Private couple's conversation" , "Private meeting" .)