Team dies away (4)
I believe the answer is:
side
'team' is the definition.
(both can mean a sports team)
'dies away' is the wordplay.
'away' is an anagram indicator (letters move away from their original places).
'dies' anagrammed gives 'SIDE'.
(Other definitions for side that I've seen before include "Dies for own team" , "superciliousness" , "English" , "Pretentious air" , "pretentious attitude" .)