A trite sort of dress (6)
I believe the answer is:
attire
'dress' is the definition.
(I know that dress can be written as attire)
'a trite sort' is the wordplay.
'sort' is an anagram indicator.
'trite' is an anagram of 'ttire'.
'a'+'ttire'='ATTIRE'
'of' acts as a link.
(Other definitions for attire that I've seen before include "(To) dress; fine clothes" , "Wear" , "Fine/formal clothes" , "Clothing - tear it (anag)" , "Formal clothes" .)