Vermont harvest (3)
I believe the answer is:
sap
'vermont harvest' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sap that I've seen before include "Fluid in plant stems" , "Weaken; tree fluid" , "Weak foolish person" , "One is easily fooled" , "Deplete, drain of resources" .)