Sponging, leechlike (9)
I believe the answer is:
parasitic
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">sponging</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">leechlike</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that leechlike can be written as parasitic)</span><br/ ><br/ ></span>
(Other definitions for parasitic that I've seen before include "Like mistletoe" , "Bloodsucking" , "hanging on?" , "Such threats" , "Living on another like flea" .)