Settle musical score? (7)
I believe the answer is:
arrange
This clue could be a double definition.
'settle' is the first definition.
(I know that settle is a kind of arrange)
'musical score?' is the second definition.
'arrange' can be an answer for 'score?' (thesaurus). I am not certain of the 'musical' bit.
Can you help me to learn more?
(Other definitions for arrange that I've seen before include "Sort" , "Put in systematic order" , "Fix" , "Set in order" , "Put in order - organise" .)