Reluctant to be seen in clothes (4)
I believe the answer is:
loth
'reluctant' is the definition.
(if you are loth to do something you are reluctant)
'seen in clothes' is the wordplay.
'seen in' indicates a hidden word.
'LOTH' is hidden within 'clothes'.
'to be' is the link.
(Other definitions for loth that I've seen before include "Reluctant, unwilling" , "Reluctant or averse" , "Reluctant or disinclined" , "Unwilling to obey" , "Not keen" .)