Swimming, do they take frantic breaths? (7)

I believe the answer is:

bathers

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'swimming do they' is the definition.
The definition suggests a plural noun which matches the answer.

'frantic breaths?' is the wordplay.
'frantic' indicates anagramming the letters (I've seen this in other clues).
'breaths' with letters rearranged gives 'BATHERS'.

'take' acts as a link.

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I've seen this clue in the Evening Standard.

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