Appal (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">appal</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for horrify that I've seen before include "Fill with disgust" , "Appal, alarm" .)
(Other definitions for daunt that I've seen before include "Make (someone) apprehensive" , "Frighten, intimidate" , "Cow" , "Scare off - dismay" , "Dishearten" .)