Smallest military formation (5)
I believe the answer is:
squad
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">smallest military formation</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for squad that I've seen before include "Quads (anag.)" , "Body of soldiers" , "Group of sportsmen" , "Pool of players" , "Smallest military formation" .)