Mark’s out of mascara (4)
I believe the answer is:
'mark's' is the definition.
(mark left by an injury)
'out of mascara' is the wordplay.
'out of' indicates the answer is hidden within the clue.
'SCAR' is hidden in the letters of 'mascara'.
(Other definitions for scar that I've seen before include "Injury mark - cliff" , "area of wound" , "Gordale - - , Yorks" , "Trace of an old injury" , "Disfigure" .)