The most common and most likely answer to this crossword clue is the 12 letter word TROUBLEMAKER
I've seen this crossword clue in Financial Times
T
R
O
U
B
L
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M
A
K
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R
More clues leading to the result TROUBLEMAKER
- Agitator beginning to tire Russian coin producer?
- Agitator - Trotskyite leader - one employed at Russian mint?
- Mark rebel out, needing reform - me?
- The first Russian ready to meet Creator – he disturbs the peace
- Rogue, leader of thieves, Russian forger?
- Dissident finally spent mint in Moscow?
- Rogue investing foreign money in volatile market
- Rogue breaking old British rule in bull market
- Agitator, gloomier, accepting end of dream after dreadful rout
Buddy explains!
The straight part
We know that "he disturbs the peace" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case he disturbs the peace = troublemaker.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 TROUBLEMAKER mean?
TROUBLEMAKER noun- One who causes trouble, especially one who does so deliberately.
- A complainer.