Erik —, French composer of 1917 ballet Parade (5)
I believe the answer is:
satie
(Other definitions for satie that I've seen before include "Erik -, nineteenth to twentieth century French composer" , "scorer" , "French avant-garde composer, Erik, d. 1925" , "Erik -----, French early minimalist composer" , "French composer of the Gymnopedies, d. 1925" .)