The most common and most likely answer to this crossword clue is the 6 letter word BANYAN
I've seen this crossword clue in Financial Times
B
A
N
Y
A
N
More clues leading to the result BANYAN
- Stop eating all types of fig
- Tree some outlaw guards
- Endless fruit around unknown tree
- Superhero gets New York to replace trademark tree
- Indian tree hiding outlaw and any criminal
- Fruit almost blankets crown of young fig tree
- Prohibition — no climbing tree
- Forbid keeping some exotic tree
- Grab any anti-capitalist hugging tree
- Prohibit covering every tree
Buddy explains!

The straight part
We know that "fig tree" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fig tree = banyan.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 BANYAN mean?
BANYAN noun- An Indian trader, merchant, cashier, or money changer.
- A tropical Indian fig tree, Ficus benghalensis, that has many aerial roots.
- A type of loose gown worn in India.
- A vest; an undershirt; a singlet.
- (Naval slang) A camping excursion on shore, to give a ship's crew a break from shipboard routine.