Crossword Genius

Exclamation, making mistake with croquet equipment (6)

Ross

I believe the answer is:

whoops

'exclamation making mistake' is the definition.
(exclamation after a making mistake)

'with croquet equipment' is the wordplay.
'with' becomes 'w' (abbreviation).
'croquet equipment' becomes 'hoops' (hoops are used in croquet).
'w'+'hoops'='WHOOPS'

(Other definitions for whoops that I've seen before include "Oh dear! That was a mistake!" , "Worrying cry" , "Exclamation after making a mistake" , "Something said after minor accident or mistake" , "Exclamation after a mistake; wild cries" .)

I've seen this clue in The Times.
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