Grass; boy's name (7)
I believe the answer is:
timothy
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">grass</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that timothy is a type of grass)</span><br/ ><br/ >'<span class="explanation-format__original">boy's name</span>' is the second definition.<br/ ><br/ ></span>
(Other definitions for timothy that I've seen before include "A grass; two NT books" , "Man's name" , "Letter recipient" , "Bible book" , "New Testament book" .)