Got an A+ on (4)
I believe the answer is:
aced
'got an a on' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for aced that I've seen before include "Sailed through" , "passed with highest marks in US" , "got a hole in one" , "Reached a golf hole in one shot" , "Comprehensively beaten" .)