Team sounded disappointed without speaking in interview (4)
I believe the answer is:
side
'team' is the definition.
(both can mean a sports team)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for side that I've seen before include "TV channel" , "camp" , "Airs and graces" , "This effect is secondary" , "group of players" .)