Crossword Genius

Pet butterfly, perhaps (6)

Ross

I believe the answer is:

stroke

This clue is a double definition.

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

'butterfly perhaps' is the second definition.
(butterfly stroke is a swimming stroke)

(Other definitions for stroke that I've seen before include "Brush gently - coup" , "Manner of swimming - caress with hand" , "Caress gently" , "Fit of apoplexy" , "Caress - rower" .)

I've seen this clue in The Independent.
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