Syrup base (3)
I believe the answer is:
sap
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">syrup base</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 sap that I've seen before include "Juice; energy" , "Vital plant juice" , "Weaken; tree fluid" , "It's plant juice, idiot" , "One is easily fooled" .)