Success dealt a blow (3)
I believe the answer is:
hit
I believe this is a double definition.
'success' is the first definition.
(hit is a kind of success)
'dealt a blow' is the second definition.
(Other definitions for hit that I've seen before include "Chart topper" , "Strike, clout" , "Badly affected" , "The shot < to > beat" , "Knock" .)