The most common and most likely answer to this crossword clue is the 7 letter word POTSDAM
I've seen this crossword clue in Financial Times
P
O
T
S
D
A
M
More clues leading to the result POTSDAM
- After uprising, foolish to quit German city
- Wild stay over in Brandenburg capital
- Conference venue spitting feathers — bar knocked back
- Heading west, bats halt, reaching German conference venue
- Nuts stage uprising in German city
- … in retrospect. Ahmad’s topic covers German city
- Kitty’s on barricade in German city
- Trophies female parent displayed in German city
- Very keen to stay around conference venue
- German city in which large amounts of money will go to mother
Buddy explains!

The straight part
We know that "German city" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case german city = potsdam.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.