The most common and most likely answer to this crossword clue is the 6 letter word DHARMA
I've seen this crossword clue in Financial Times
D
H
A
R
M
A
Buddy explains!

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 DHARMA mean?
DHARMA noun- The natural order of the universe; natural law, cosmic order.
- One's obligation in respect to one's position in society, one's duty.
- The teachings of the Buddha as one's personal path to enlightenment.
- The teachings of the Buddha as a practice to be promulgated and taught.