Ditches patois, turning suave (13)
I believe the answer is:
sophisticated
'suave' is the definition.
(thesaurus)
'ditches patois turning' is the wordplay.
'turning' is an anagram indicator.
'ditches'+'patois'='ditchespatois'
'ditchespatois' with letters rearranged gives 'SOPHISTICATED'.
(Other definitions for sophisticated that I've seen before include "Urbane" , "Cosmopolitan" , "Possessed of culture, refinement and 24" , "Cultured; refined" , "Showing knowledge of fashion and culture" .)