The most common and most likely answer to this crossword clue is the 6 letter word WARSAW
W
A
R
S
A
W
More clues leading to the result WARSAW
- City wasn't prepared for revolution
- City used to be verdant, looking from the east
- Capital was used up supporting conflict
- Battles a western city
- City had not been prepared for rising
- Capital then is now cooked up?
- Capital, sharp tool used in action?
- Fighting witnessed in European capital
- Hostilities observed in capital in 20
- Hostility sighted in capital
Buddy explains!

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