Mark defaced acting trophy (4)
I believe the answer is:
scar
This clue could be a double definition.
'mark' is the first definition.
(mark left by an injury)
'defaced acting trophy' is the second definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
Can you help me to learn more?
(Other definitions for scar that I've seen before include "Sign of wound" , "Permanently damage" , "Evidence of an old wound" , "Stigma" , "Gordale - - , Yorks" .)