Ling (7)
I believe the answer is:
heather
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ling</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that ling can be written as heather)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for heather that I've seen before include "Moorland flora" , "Moorland shrub" , "Girl" , "that grows up in the Highlands" , "Another term for ling" .)