Confabulate (4,3,3)
I believe the answer is:
chew the fat
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">confabulate</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for chew the fat that I've seen before include "Shoot the breeze?" , "Argue incessantly" , "Gossip, chat" , "Indulge in idle conversation" , "Mistress Sprat liked to?" .)