Sporting team (4)
I believe the answer is:
side
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sporting team</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for side that I've seen before include "Dies for own team" , "Football team" , "Competing players" , "Particular aspect" , "This effect is secondary" .)