Fit or suitable to go without clothes (4)

I believe the answer is:

able

I'm a little stuck... Click here to teach me more about this clue!

'fit' is the definition.
(similar in meaning)

'suitable to go without clothes' is the wordplay.
'ABLE' is hidden in amongst the letters.
But, I'm not sure how this is indicated.

'or' is the link.

Can you help me to learn more?

(Other definitions for able that I've seen before include "Capable or proficient" , "Efficient" , "Well-equipped" , "accomplished" , "Competent and fit, like sailor" .)

I've seen this clue in the Evening Standard.

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