Entree go-with (4)
I believe the answer is:
side
'entree go-with' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for side that I've seen before include "Airs and graces" , "Affectation" , "Pomposity - bias - team" , "Not the main" , "Dies for own team" .)