Chitter-chatter (3)
I believe the answer is:
gab
'chitter-chatter' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for gab that I've seen before include "gossip" , "Talk at length, chatter" , "Natter" , "Talk a lot" , "Loquacity the gift of it" .)