A team competing away (5)
I believe the answer is:
aside
'away' is the definition.
(I know that away can be written as aside)
'a team' is the wordplay.
'team' becomes 'side' (both can mean a sports team).
'a'+'side'='ASIDE'
'competing' acts as a link.
This may not be right. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for aside that I've seen before include "In reserve -- confidential remark" , "kept in reserve" , "(Turn) off main path" , "Digression" , "Remark by an actor, directly to audience say" .)