Reject garbage (6)
I believe the answer is:
refuse
I believe this clue is a double definition.
'reject' is the first definition.
(synonyms)
'garbage' is the second definition.
(synonyms)
(Other definitions for refuse that I've seen before include "Turn down - rubbish" , "Turn down; waste" , "household rubbish" , "Turn away" , "Junk" .)