Acorn source (3,4)
'acorn source' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for oak tree that I've seen before include "royal hiding place evidently" , "wood source?" , "Product of acorn" , "Old plant (round which to tie a yellow ribbon?)" , "Acorn producer" .)
'acorn source' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for oak that I've seen before include "Common forest tree" , "Acorn tree" , "Its seed is the acorn" , "Acorns are its fruit" , "The mighty tree" .)