Joyce masterpiece (7)
I believe the answer is:
'joyce masterpiece' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ulysses that I've seen before include "name for Civil War hero" , "Wandering Greek hero or novel by James Joyce" , "Famous novel by James Joyce" , "Ancient Greek hero, and novel by James Joyce" , "Hero of the Odyssey and James Joyce title" .)