Ottorino __(1879-1936), composer known for his tone poems (8)
I believe the answer is:
respighi
(Other definitions for respighi that I've seen before include "Ottorino -, Ital. composer (The Pines of Rome)" , "Italian composer (The Pines of Rome)" , "Irish peg, oddly, for the Italian composer" , "he scored!" , "Italian barman" .)