The most common and most likely answer to this crossword clue is the 10 letter word MONTMARTRE
I've seen this crossword clue in Financial Times
M
O
N
T
M
A
R
T
R
E
More clues leading to the result MONTMARTRE
- In Paris my term is planned to include painting here?
- In Paris my new term involves painting here?
- Paris district has more gripping books on market
- Frenchman not upset about going round market in part of Paris . . . .
- Author Thomas tours book fair in Parisian district
- Book collection and a thousand paintings maybe in extra arty city area
- Book fair welcomed by additional quarter of European city
- Time, between a day and a month, tense on Parisian hill
- Drive home, back into awful torment in part of Paris
Buddy explains!

The straight part
We know that "Paris district" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case paris district = montmartre.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.