Weaselly individual wanders about naked (5)
I believe the answer is:
otter
I'm afraid I can't even guess how this answer relates to the clue.
Can you help me to learn more?
(Other definitions for otter that I've seen before include "Aquatic member of weasel family" , "Aquatic weasel-like mammal" , "Holt dweller" , "one that eats fish" , "furry creature" .)