Slender graceful female (5)
I believe the answer is:
sylph
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">slender graceful female</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sylph that I've seen before include "Slender, graceful female" , "Thin, graceful woman" , "slender lass!" , "Imaginary (female) being" , "Slender and graceful young woman" .)