First part of musical score maybe involving Italian singer (8)
I believe the answer is:
baritone
'singer' is the definition.
(I know that baritone is a type of singer)
'first part of musical score maybe involving italian' is the wordplay.
I cannot really see how this works, but
'first' could be 'one' (I've seen this in another clue) and 'one' is located in the answer.
'score' could be 'rit' (I've seen this before) and 'rit' is found within the answer.
The remaining letters 'ba' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for baritone that I've seen before include "Male singer looks odd in boater" , "One who can sing" , "Male voice between bass and tenor" , "Male singer in boater, strangely" , "Male singer between tenor and bass" .)