The most common and most likely answer to this crossword clue is the 9 letter word PAKISTANI
I've seen this crossword clue in The Times
P
A
K
I
S
T
A
N
I
More clues leading to the result PAKISTANI
- Mess kit's a pain for citizen of Commonwealth
- Asian’s endless alarm, carrying an old chest
- Asian to show fear endlessly outside a burial chamber
- Coffin covered in betel leaf, one for a Muslim, probably
- Asian and a son in outfit beset by a lot of fear
- Asian king is drawn in by smashing pinata
- Asian kept in Asia, excited after withdrawal of English
- Sort of Asian kept outside of India when English left
- A tank is renovated in keeping of good Asian
- Our neighbour is a pianist, takes one thousand after play
Buddy explains!

The straight part
We know that "Asian" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case asian = pakistani.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.