Chat idly (8)
I believe the answer is:
schmooze
'chat idly' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for schmooze that I've seen before include "Gossip in a friendly way" , "Talk intimately in order to manipulate" , "circulate" , "Talk amicably, perhaps seeking a favour" , "Intimate and cosy gossip" .)