To daze (4)
I believe the answer is:
stun
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">to daze</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for stun that I've seen before include "Make dazed or numb" , "Knock cold" , "Take aback" , "Daze, concuss" , "Numb with nuts" .)