Besmirch (3)
'besmirch' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for mar that I've seen before include "'Impair, spoil (3)'" , "Blemish" , "Ram into and spoil" , "Cause harm" , "hurt" .)
'besmirch' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tar that I've seen before include "Kind of rat for sailor" , "Viscous liquid; sailor" , "Black substance, used on roads" , "Harmful tobacco residue" , "Viscous bituminous substance" .)