Elm or oak (4)

I believe the answer is:

tree

I believe this clue is a double definition.

'elm' is the first definition.
(I've seen this in another clue)

'oak' is the second definition.
(I've seen this before)

(Other definitions for tree that I've seen before include "Root-and-branch plant?" , "Large plant with trunk" , "Source of wood" , "eg Rowan" , "Big plant" .)

I've seen this clue in the LA Times, The Sun and the Newsday.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.