Crossword Genius

Bloomer in the orchestra? (5)

Ross

I believe the answer is:

viola

I'm a little stuck... Click here to teach me more about this clue!

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

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for viola that I've seen before include "String quartet member" , "big fiddle!" , "part of a broken-down 27 [CARTHORSE]" , "One played" , "Achievement" .)

I've seen this clue in The Irish Independent.
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