The most common and most likely answer to this crossword clue is the 6 letter word BRUGES
I've seen this crossword clue in Financial Times
B
R
U
G
E
S
More clues leading to the result BRUGES
- Benelux city offends: one’s leaving for good
- Cream mostly containing syrup: there’s port here
- Place in Europe British bunglers oddly forfeited
- Seen this city? It can be seen travelling round in green buses
- With sex for $1000, bugger naff tourist city!
- Cruel people using guns at first for time in European city
- Little brother, initially uncertain, gets time off in Belgian city
- Happen to keep hairpiece — capital for Swann, and for Flanders!
Buddy explains!
The straight part
We know that "European city" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case european city = bruges.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.