Sylphlike
I believe the answer is:
lissome
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sylphlike</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for lissome that I've seen before include "Thin - supple - graceful" , "Lithe; nimble" , "Moving supply" , "Willowy" , "So smile, being agile and lithe" .)