Unpopular team away from home (7)
I believe the answer is:
outside
'away from home' is the definition.
(outside of one's home)
'unpopular team' is the wordplay.
'unpopular' becomes 'out' (similar in meaning).
'team' becomes 'side' (both can mean a sports team).
'out'+'side'='OUTSIDE'
(Other definitions for outside that I've seen before include "Tedious (anag)" , "Where smokers now often must go" , "Without" , "Alfresco" , "In the fresh air?" .)