Hostile party (3)
(Other definitions for foe that I've seen before include "Evil rival" , "Antagonist" , "opposing side" , "Am archaic enemy" , "Someone opposing" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">hostile party</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for enemy that I've seen before include "Antagonist" , "Yemen (anag.)" , "Opposing force" , "Foe, adversary" , "Armed adversary" .)