Source of chocolate (5)
I believe the answer is:
cacao
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">source of chocolate</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 cacao that I've seen before include "Tree yielding chocolate" , "Tree with seeds used to make chocolate" , "Tree for cocoa bean" , "Tropical tree, the source of chocolate" , "Bean providing chocolate" .)