Stop and aim (3)
I believe the answer is:
end
This clue is a double definition.
'stop' is the first definition.
(synonyms)
'aim' is the second definition.
(I've seen this before)
'and' is the link.
(Other definitions for end that I've seen before include "death" , "Extreme" , "Goal; leftover" , "Final stage" , "Purpose of finish" .)