Timidly (5)
I believe the answer is:
shyly
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">timidly</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for shyly that I've seen before include "In a timid manner" , "Nervously, timidly" , "In reserved way" .)