Timorous (5)
I believe the answer is:
timid
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">timorous</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for timid that I've seen before include "Fearful - shy" , "Easily frightened" , "Lacking self-confidence" , "afraid to speak out?" , "Easily alarmed, shy" .)