Chat leisurely (4,3,3)
I believe the answer is:
chew the fat
'chat leisurely' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for chew the fat that I've seen before include "Gossip, chat" , "Talk socially" , "Indulge in idle conversation" , "Jack Sprat's wife would!" , "Chat leisurely; the few chat (anagram)" .)