Impair (6)
'impair' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for worsen that I've seen before include "Aggravate" , "Become less well" , "Become more inferior" , "Deteriorate for owners" , "go downhill" .)
'impair' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for damage that I've seen before include "Impair, hurt" , "Impair and lower value" , "Deface, harm" , "Mar" , "Impairment, injury" .)
'impair' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for weaken that I've seen before include "Sap" , "Become less strong" , "Show signs of giving in" , "Become more feeble" , "Make less strong" .)
'impair' is the definition.
(I know that impair can be written as mar)
This is all the clue.
(Other definitions for mar that I've seen before include "Blight" , "Detract from" , "Cause harm" , "Spoil stuff" , "Spoil, damage" .)