A trite arrangement of dress (6)
I believe the answer is:
attire
'dress' is the definition.
(I know that dress is a more specific form of the action attire)
'a trite arrangement' is the wordplay.
'arrangement' indicates an anagram.
'trite' with letters rearranged gives 'ttire'.
'a'+'ttire'='ATTIRE'
'of' is the link.
(Other definitions for attire that I've seen before include "Wear" , "Formal clothing" , "Habit" , "Prepare" , "(To) dress; fine clothes" .)