Read music (5)
I believe the answer is:
study
This clue is a double definition.
'read' is the first definition.
(I know that read can be written as study)
'music' is the second definition.
(I know that study is a type of composition)
(Other definitions for study that I've seen before include "Den; a practice drawing" , "Scrutinise" , "Read to learn" , "Read; examine" , "Investigate" .)