Turn away (5)
I believe the answer is:
avert
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">turn away</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for avert that I've seen before include "use preventive measures" , "Prevent from happening" , "Prevent from occurring" , "Turn away, prevent" , "Prevent, ward off" .)