Daze, shock (4)
I believe the answer is:
stun
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">daze</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that daze can be written as stun)</span><br/ ><br/ >'<span class="explanation-format__original">shock</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(both can mean to surprise)</span><br/ ><br/ ></span>
(Other definitions for stun that I've seen before include "cause amazement" , "Stagger, amaze" , "Anaesthetise" , "Shock, flabbergast" , "Render insensitive" .)