Chat about setter being better dressed (7)
I believe the answer is:
nattier
'better dressed' is the definition.
(I've seen this in another clue)
'chat about setter being' is the wordplay.
'chat' becomes 'natter' (synonyms).
'about' is an insertion indicator.
'setter being' becomes 'i' (I am not sure about this - if you are sure you should believe this answer much more).
'natter' enclosing 'i' is 'NATTIER'.
Can you help me to learn more?
(Other definitions for nattier that I've seen before include "Like the smarter set" , "less scruffy" , "Smarter and more fashionable" , "Louis XV court painter; more dapper" , "More clever" .)