Pass up garbage (6)
I believe the answer is:
refuse
I believe this is a double definition.
'pass up' is the first definition.
(synonyms)
'garbage' is the second definition.
(synonyms)
(Other definitions for refuse that I've seen before include "Turn away" , "Decline to accept - waste" , "Don't take the rubbish" , "Waste, garbage" , "Trash" .)