Detonate (7)
I believe the answer is:
explode
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">detonate</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for explode that I've seen before include "Blow up" , "Set off" , "Burst outward" , "mushroom" , "Violently shatter" .)