Sullied (6)
'sullied' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for impure that I've seen before include "Tainted, not chaste" , "Unchaste, polluted" , "Adulterated, dirty (6)" , "Corrupt" , "Lewd" .)
'sullied' is the definition.
(synonyms)
This is all the clue.
(Other definitions for tarnished that I've seen before include "Stained" , "Having lost lustre" , "Blemished" , "Sullied" , "Dulled, discoloured" .)