Erroneous bakery product? (7)

I believe the answer is:

bloomer

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'erroneous bakery product?' is the definition.
The definition suggests a singular noun which matches the answer.

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(Other definitions for bloomer that I've seen before include "Something from the baker" , "made by a baker" , "A loaf; an error" , "that's made with flour!" , "Loaf of bread" .)

I've seen this clue in the Evening Standard.

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