Bows? Nonsense! (12)

I believe the answer is:

fiddlesticks

I believe this clue is a double definition.

'bows?' is the first definition.
(I know this)

'nonsense' is the second definition.
(fiddlesticks can informally mean nonsense)

(Other definitions for fiddlesticks that I've seen before include "Bother!" , "Violin bows - rubbish!" , "tripe" , "Expression of annoyance or disagreement" , "Bilge" .)

I've seen this clue in The Globe and Mail.

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