Easing of tensions between nations (7)
I believe the answer is:
detente
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">easing of tensions between nations</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for detente that I've seen before include "Thaw in relations" , "peace during hostilities" , "Easing of international tension" , "The easing of tensions between nations" , "Easing of strained relationships between countries" .)