Crossword Genius

Tree (3)

Ross

'tree' is the definition.
(oak is a type of tree)

This is the entire clue.

(Other definitions for oak that I've seen before include "Tree of the genus Quercus" , "Acorn tree" , "Building timber" , "Traditional British tree" , "From little acorns does it grow" .)

I've seen this clue in The Telegraph, The Mirror, the King Feature Syndicate, the New York Times, The Times, The Daily Mail, The Independent, the Sydney Morning Herald, the Evening Standard and The Sun.
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