Handsome fellow (6)
I believe the answer is:
adonis
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">handsome fellow</span>' is the definition.<br/ ><span class="explanation-format__explanation">(Greek myth)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for adonis that I've seen before include "A very handsome legendary Greek" , "Fit bloke" , "Handsome youth (Gr.)" , "dandy" , "Extremely attractive young man from Greek mythology" .)