Tarnished, stained (7)
I believe the answer is:
sullied
This clue is a double definition.
'tarnished' is the first definition.
(synonyms)
'stained' is the second definition.
(sullying is a kind of staining)
(Other definitions for sullied that I've seen before include "Defiled" , "Made dirty" , "Disgraced, being ill-used" , "Stained or blemished as reputation may be" .)