Aspects; teams (5)
I believe the answer is:
sides
I believe this clue is a double definition.
'aspects' is the first definition.
(I know this)
'teams' is the second definition.
(eg football sides)
(Other definitions for sides that I've seen before include "Flanks, or opposing teams" , "Teams or flat surfaces" , "Opposing teams or facets" , "camps" , "Takes the part of someone in a dispute" .)