Mike cored apple in wood (5)
I believe the answer is:
maple
'wood' is the definition.
(I know that maple is a type of wood)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for maple that I've seen before include "Tree; sugar from it" , "plant" , "Leaves on this" , "Syrup-yielding tree" , "Type of syrup" .)