The most common and most likely answer to this crossword clue is the 11 letter word TOWNSPEOPLE
I've seen this crossword clue in The Daily Telegraph
T
O
W
N
S
P
E
O
P
L
E
Buddy explains!

The straight part
We know that "Urban residents" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case urban residents = townspeople.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.
What does TOWNSPEOPLE mean?
TOWNSPEOPLE noun- An inhabitant of a town.