Feeling of apprehension (5)
I believe the answer is:
angst
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">feeling of apprehension</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for angst that I've seen before include "Stang (anag)" , "Feeling of anxiety or guilt" , "Horrible feeling" , "Nagging worry" , "Great anxiety" .)