The most common and most likely answer to this crossword clue is the 6 letter word YEMENI
I've seen this crossword clue in The Guardian
Y
E
M
E
N
I
More clues leading to the result YEMENI
- Arab sheikhs finally shunning sycophants on island
- Arab from India on enemy ground
- Arab sycophants shunning second one
- Arab enemy I shot
- Arab dated second person — the first person back at home
- The old chaps meeting one Middle Eastern person
- Arabian folk captivated by timeless Himalayan legend
- Servile types deported son — one from a Middle Eastern country
- National enemy crushed by Indian leader
- Asian from India pursuing desire to throttle setter
Buddy explains!
The straight part
We know that "National" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case national = yemeni.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.