Deface (3)
'deface' is the definition.
(I know that deface can be written as disfigure)
This is all the clue.
(Another definition for disfigure that I've seen is " Deface".)
'deface' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for mar that I've seen before include "hurt" , "Detract from" , "Make imperfect" , "Ram into and spoil" , "Cause harm" .)