Homeric epic (5)
I believe the answer is:
iliad
'homeric epic' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for iliad that I've seen before include "Long Homeric poem" , "Greek epic poem about the Trojan War" , "Great poem by Homer" , "Homer's epic account of the Trojan war" , "Homer's great poem" .)