Crossword Genius

Please exercise duck (5)

Ross

I believe the answer is:

douse

'duck' is the definition.
(synonyms)

'please exercise' is the wordplay.
'please' becomes 'do' (I've seen this in other clues).
'exercise' becomes 'use' (synonyms).
'do'+'use'='DOUSE'

(Other definitions for douse that I've seen before include "Put out (flame)" , "Throw water over, extinguish" , "Of fire, quench with water" , "snuff" , "Soak" .)

I've seen this clue in The Telegraph.
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