Frightened cry (3)
I believe the answer is:
eek
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">frightened cry</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 eek that I've seen before include "Alarmed expression" , "Expression of mild alarm" , "I'm frightened!" , "Expression of surprise" , "Expression of mild fright" .)