Jeopardise (8)
I believe the answer is:
endanger
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">jeopardise</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for endanger that I've seen before include "Hazard" , "Put in jeopardy" , "Place into peril, jeopardise" , "Imperil" , "Expose to injury or extinction" .)