Clothes appear ragged on lecturer (7)
I believe the answer is:
apparel
'clothes' is the definition.
('apparel' can be a synonym of 'clothes')
'appear ragged on lecturer' is the wordplay.
'ragged' indicates an anagram.
'on' is a charade indicator (letters next to each other).
'lecturer' becomes 'l'.
'appear' with letters rearranged gives 'appare'.
'appare'+'l'='APPAREL'
(Other definitions for apparel that I've seen before include "kit" , "Attire" , "Raiment" , "it's generally put on!" , "Garb, clothes" .)