Crossword Genius

Nothing works. My bad! (4)

Ross

I believe the answer is:

oops

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

'nothing works' is the wordplay.
'nothing' becomes 'O' (O resembles 0).
'works' becomes 'ops' (op is short for opus, a work).
'o'+'ops'='OOPS'

(Other definitions for oops that I've seen before include "Oh dear, that's a mistake!" , "Oh dear, I've spilt something!" , "Exclamation on making obvious mistake" , "Exclamation of surprise or apology when making mistake" , "I've slipped" .)

I've seen this clue in The Telegraph.
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