CCCWC November competition voters’ comments on Clue no. 18

A clue to SOUSAPHONE.
3 comments refer to this clue (from 3 competitors, 0 others)

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Comments on the clue

1.	I'm not sure what 'being' adds to the clue
2.	Definition too vague for a specific instrument
3.	Successful &lit (when read as "Does opus have one being played?" which isn't obvious at first glance)