The most common and most likely answer to this crossword clue is the 7 letter word KARACHI
K
A
R
A
C
H
I
More clues leading to the result KARACHI
- Old craft returned carrying a letter from Greek port
- Turkish capital left by first couple meeting Greek character in port
- Port area captured by king, cunning one
- Ankara chiefly includes former capital city
- Karnataka vehicle taken back to Hawaii's city
- Indian spicy snack to Greek character in city in neighbouring country
- King on a fancy chair in Asian city
- Smiley’s nemesis ousting large character from overseas port
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 = karachi.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.