Grassy mound (5)
I believe the answer is:
knoll
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">grassy mound</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for knoll that I've seen before include "Round hillock" , "Small natural hill, perhaps grassy" , "Small rounded hill" , "Little hill" , "Small hill or mound" .)