The most common and most likely answer to this crossword clue is the 6 letter word SANDAL
S
A
N
D
A
L
More clues leading to the result SANDAL
- Some boots and a light shoe
- . Shame to remove Charlie’s shoe
- Signora’s extremities need large shoe
- Shoe polish applied liberally at first
- File a loan originally for footwear
- Son with a large item of footwear
- Footwear‘s the making of Sal
- It’s bound to go on foot
- You might have set foot in this bit of West Yorks
- Nearly everybody supports beach footwear
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 = sandal.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 SANDAL mean?
SANDAL noun- A type of open shoe made up of straps or bands holding a sole to the foot
- Sandalwood
- A long narrow boat used on the Barbary coast.