Crouch down in fear (5)
I believe the answer is:
cower
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">crouch down in fear</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for cower that I've seen before include "Crouch in fear" , "Bend in fear" , "intimidating person?" , "Cringe, grovel" , "to emulate Burns's wee beastie" .)