Chatted (8)
I believe the answer is:
nattered
'chatted' is the definition.
('natter' can be a synonym of 'chat')
This is all the clue.
(Other definitions for nattered that I've seen before include "Had a general chat" , "Attender (anag.)" , "Gossiped idly" , "Chewed the fat" , "Talked idly" .)