Teams (5)
I believe the answer is:
sides
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">teams</span>' is the definition.<br/ ><span class="explanation-format__explanation">(eg football sides)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sides that I've seen before include "Sports teams" , "Lines" , "parties" , "Flanks, or opposing teams" , "Opposing factions or facets" .)