Clique responsible for some loose talk (3)
I believe the answer is:
set
'clique' is the definition.
(thesaurus)
'some loose talk' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'SET' is hidden in the letters of 'loose talk'.
'responsible for' is the link.
(Other definitions for set that I've seen before include "Place - become rigid - adjust - group of tennis games - fixed - clique - fall beneath the horizon" , "(Of the sun) drop below the horizon" , "Mount (gem); scenery" , "Customary < scenery < a TV < series" , "Put down the group of games" .)