Give in to fear (5)
I believe the answer is:
panic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">give in to fear</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for panic that I've seen before include "mass hysteria?" , "State of overwhelming fear" , "Sudden uncontrollable fear" , "Sudden alarm" , "general alarm" .)