Waxplant (4)
I believe the answer is:
hoya
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">waxplant</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that waxplant can be written as hoya)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for hoya that I've seen before include "wax plant" , "plant of western Pacific" .)