Nuclear restraint accord (4,3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">nuclear restraint accord</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for test ban that I've seen before include "international bar" , "Check on risky race" , "ignorant students might favour?" , "Prohibition on trying out atomic bombs" , "international agreement on arms" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">nuclear restraint accord</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>