Guaranteed, made certain (7)
I believe the answer is:
ensured
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">guaranteed</span>' is the first definition.<br/ ><span class="explanation-format__explanation">('ensure' can be a synonym of 'guarantee')</span><br/ ><br/ >'<span class="explanation-format__original">made certain</span>' is the second definition.<br/ ><span class="explanation-format__explanation">('ensure' can be a synonym of 'make certain')</span><br/ ><br/ ></span>
(Other definitions for ensured that I've seen before include "Saw to it" , "Make certain of" , "Made certain for end user" , "Determined" , "Made certain, clinched" .)