Impartial aim (9)
I believe the answer is:
objective
This clue is a double definition.
'impartial' is the first definition.
(thesaurus)
'aim' is the second definition.
(I know that aim can be written as objective)
(Other definitions for objective that I've seen before include "Aim - impartial" , "relating to external phenomena" , "Having real existence or not personal" , "Unbiased - aim" , "Dispassionate" .)