Sudden pang (5)
I believe the answer is:
throe
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sudden pang</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 throe that I've seen before include "Spasm - pang" , "pain" , "Convulsion" , "Other (anag.)" .)