The most common and most likely answer to this crossword clue is the 6 letter word PATHAN
P
A
T
H
A
N
More clues leading to the result PATHAN
- Track an inhabitant of NW Pakistan?
- Way to introduce a knight, one who speaks Pashto
- Route taken by an Asian
- Asian article buried under footway
- Track followed by an Afghan tribesman
- Course of action followed by a new Asian
- Irishman with Chinese and Afghan national
- He is on the way to central bank in Kabul, say
- One on the way to Kabul
- Article following trail of the Khyber Pass tribesman
Buddy explains!

The straight part
We know that "Afghan national" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case afghan national = pathan.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.