Score by Antony, for one (4)
I believe the answer is:
mark
'score' is the definition.
(synonyms)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for mark that I've seen before include "Gospel author" , "Former German currency" , "Indicate" , "made by those who hit the big time" , "Man's name; target" .)