Sports side (4)
'sports side' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for team that I've seen before include "A cooperative unit" , "(Two or more) horses in harness" , "Competitive side" , "Side; harness (horses)" , "Mate with game group" .)
(Other definitions for eleven that I've seen before include "Football or cricket team?" , "'Legs' bingo number" , "Number, on a team maybe" , "Cardinal" , "Odd number for a team" .)