Ridiculed for being poorly dressed (6)
I believe the answer is:
ragged
I believe this clue is a double definition.
'ridiculed' is the first definition.
(I've seen this before)
'being poorly dressed' is the second definition.
(I've seen this before)
'for' is the link.
(Other definitions for ragged that I've seen before include "Wearing torn clothes or lacking smoothness" , "Scruffy" , "Dressed in torn clothes" , "Poorly clothed; with rough edges" , "Tattered and torn" .)