Ceasefire (5)
I believe the answer is:
truce
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ceasefire</span>' is the definition.<br/ ><span class="explanation-format__explanation">(both can mean a break in fighting)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for truce that I've seen before include "peace initiative" , "Peace agreement" , "Cessation of hostilities to allow peace talks" , "Agreement to stop fighting temporarily" , "conciliatory agreement" .)