All sorts going topless repeatedly around promenade (6)

I believe the answer is:

stroll

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'promenade' is the definition.
('stroll' can be a synonym of 'promenade')

I don't understand how the remainder of the clue works.

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(Other definitions for stroll that I've seen before include "Walk slowly and idly" , "cinch" , "swan" , "A casual, relaxing walk" , "Amble or ramble" .)

I've seen this clue in The Telegraph.

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