Sinned (12)

I think it could be either:

Which length description are you looking for?:

erred

'sinned' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for erred that I've seen before include "Made a mistake, was wrong" , "Went wrong" , "Sinned" , "Made mistake, was incorrect" , "was inaccurate" .)

I've seen this clue in The Telegraph.

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