Baseball score (5)
'baseball score' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for run that I've seen before include "travel with > expedition" , "Dart" , "Scarper" , "Manage; career" , "Organize" .)
(Other definitions for homer that I've seen before include "Great Greek who was known to nod" , "Epic poet - score at baseball - kind of pigeon" , "Type of pigeon" , "Cartoon father of Bart and Lisa" , "Old Greek epic poet" .)