Shot or stab (7)
I believe the answer is:
attempt
I believe this is a double definition.
'shot' is the first definition.
(shot can mean an attempt)
'stab' is the second definition.
(I've seen this before)
(Other definitions for attempt that I've seen before include "bash" , "Try, hazard" , "Essay" , "Try, make an effort" , "Tackle" .)