Syrup-yielding tree (5)
I believe the answer is:
maple
'syrup-yielding tree' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for maple that I've seen before include "Emblematic tree of Canada" , "a lot of these in Canada" , "----- leaf: symbol of Canada" , "Tree providing syrup" , "Tree providing Canada's national emblem" .)