The most common and most likely answer to this crossword clue is the 8 letter word AUSTRIAN
I've seen this crossword clue in The Daily Telegraph
A
U
S
T
R
I
A
N
More clues leading to the result AUSTRIAN
- Faust Brian put together without leading notes, like Berg?
- Al abandoned girl down under for a European
- American aboard a moving train, one coming from Vienna?
- European and American in a train slightly confused
- European in a train wandering around America
- Turn Asia around to welcome European
- Uni dons playing Sinatra or Foreigner?
- EU citizen values a term I hadn’t used regularly
- European or American gangster shunned by someone down under
Buddy explains!
The straight part
We know that "one coming from Vienna" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one coming from vienna = austrian.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.