Aim, when near (4)
I believe the answer is:
mean
I believe this clue is a double definition.
'aim' is the first definition.
(I've seen this before)
'near' is the second definition.
(thesaurus)
'when' is the link.
(Other definitions for mean that I've seen before include "middle course" , "Signify; average" , "spell" , "Common" , "Aim - low - average" .)