One doesn't enjoy being clobbered (6)

I believe the answer is:

nudist

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'one' is the definition.
Although both the answer and definition are adjectives, I can't understand how they can define each other.

I cannot understand how the remainder of the clue works.

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(Other definitions for nudist that I've seen before include "One who sheds clothes in camp or on beach" , "One going unclothed" , "Dustin (anag)" , "One forsaking clothes" , "he reveals all" .)

I've seen this clue in The Guardian.

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