Grifter's target (4)
I believe the answer is:
mark
'grifter's target' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for mark that I've seen before include "Man's name; target" , "made by those who hit the big time" , "symbol" , "Spot - score - target" , "What one might have paid old German" .)