The most common and most likely answer to this crossword clue is the 6 letter word WALNUT
I've seen this crossword clue in Independent
W
A
L
N
U
T
More clues leading to the result WALNUT
- Tree climbing enactment enthusiast
- Rule about addict that once made a dash?
- Brown writing up order before trade union revised our rates for train service
- Tree legislation turns head
- In forest, unlawful to go around a tree
- Regulation rejected by head cabinetmaker
- Brownâs legislation upset teachers as a body
Buddy explains!

The straight part
We know that "Tree" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case tree = walnut.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does WALNUT mean?
WALNUT noun- A hardwood tree of the genus Juglans.
- A nut of the walnut tree.
- Wood of the walnut tree.
- Dark brown colour, the colour of walnut wood.
- Having a dark brown colour, the colour of walnut wood.