The most common and most likely answer to this crossword clue is the 10 letter word TRIPARTITE
I've seen this crossword clue in The Daily Telegraph
T
R
I
P
A
R
T
I
T
E
More clues leading to the result TRIPARTITE
- Possibly Con/Lab/Lib-Dem role, one outwardly well-worn
- Dance with skill, I note, having three elements
- Like a three-piece suit? New attire may be acquired after journey
- Three-piece pirate attire which hasn’t aged badly
- Journey, special treat around Italy, with three parties
- For threefold experience of drugs culture I start to take Ecstasy
Buddy explains!

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 TRIPARTITE mean?
TRIPARTITE adjective- In three parts.
- Done by three parties (as an agreement).