Crossword Genius

Cast three actors to create parts for musical? (11)

Ross

I believe the answer is:

orchestrate

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

'create parts for musical?' is the definition.
I can't judge whether this defines the answer.

'cast three actors' is the wordplay.
'cast' indicates anagramming the letters (letters are dispersed or cast around).
'three'+'actors'='threeactors'
'threeactors' anagrammed gives 'ORCHESTRATE'.

'to' is the link.

Can you help me to learn more?

(Other definitions for orchestrate that I've seen before include "Organise (a complex enterprise)" , "Arrange scores" , "Organise (music)" , "Score (a piece)" , "Arrange for a full band" .)

I've seen this clue in The Independent.
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