Just not taking sides (9)
I believe the answer is:
impartial
This clue is a double definition.
'just' is the first definition.
(associated in meaning)
'not taking sides' is the second definition.
(I've seen this before)
(Other definitions for impartial that I've seen before include "Disinterested" , "Fair, unprejudiced" , "Unbiased" , "Objective" , "Treating all rivals equally" .)