Cone source (3)
I believe the answer is:
fir
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cone source</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for fir that I've seen before include "Coniferous tree" , "Evergreen tree for Irish men?" , "Pine tree for Gaelic men?" , "Scots pine" , "Tree for Irishmen" .)