Agreement to stop fighting (5)
I believe the answer is:
truce
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">agreement to stop fighting</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 truce that I've seen before include "Temporary halt in hostilities" , "Suspension of hostilities" , "peace initiative" , "Cruet (anag.)" , "bit of peace" .)