The most common and most likely answer to this crossword clue is the 9 letter word HUNCHBACK
I've seen this crossword clue in Independent
H
U
N
C
H
B
A
C
K
Buddy explains!
The straight part
We know that "in Paris, one rang some bells" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case in paris, one rang some bells = hunchback.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 HUNCHBACK mean?
HUNCHBACK noun- One who is stooped or hunched over.
- A deformed upper spinal column in the shape of a hump in the back.
- A person with kyphosis, a spinal deformity that causes a hunched over appearance.