The most common and most likely answer to this crossword clue is the 7 letter word LAMBETH
I've seen this crossword clue in The Times
L
A
M
B
E
T
H
More clues leading to the result LAMBETH
- Wooden strip containing medal found in London borough
- Youngster redeveloping the London borough
- Certain sort of walk from sweet innocent type, before the shakes
- Bash attended by little woman somewhere south of the Thames
- Branagh's lead in 'Hamlet' excited London borough
- Writer of essays on the corrupt 18 location
- Borough, it’s origin found in sprawling hamlet
- Soundly beat husband after wager in London borough
Buddy explains!
The straight part
We know that "London borough" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case london borough = lambeth.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.