Someone finding no attire good enough (6)
I believe the answer is:
nudist
'someone' is the definition.
(nudist is a kind of someone)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for nudist that I've seen before include "One naked by conviction" , "One who sheds clothes in camp or on beach" , "Sun worshipper" , "Person committed to going unclothed" , "S/he prefers to be naked" .)