Crossword Genius

Swimming riled lazybones (5)

Ross

I believe the answer is:

idler

'lazybones' is the definition.
(I've seen this before)

'swimming riled' is the wordplay.
'swimming' indicates an anagram (letters swim around into a new order).
'riled' with letters rearranged gives 'IDLER'.

(Other definitions for idler that I've seen before include "Johnson's work" , "who makes no effort" , "Time waster" , "comparatively slack" , "One reluctant to work" .)

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