The most common and most likely answer to this crossword clue is the 8 letter word RASPUTIN
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More clues leading to the result RASPUTIN
- Monk overthrows puritans
- Influential Russian beginning to rule presidentially?
- Peasant killed by Russian leader like 2
- Russian holy man heading for Romania, like the Russian president
- Notorious Russian artist’s inserted
- Historical debauchee and king, when introduced
- Monk‘s society set to enter storm perhaps
- Russian mystic artist’s given introduction
- Monk‘s spades placed in bucket
- Monk artist’s introduced
Buddy explains!

The straight part
We know that "Historical debauchee" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case historical debauchee = rasputin.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.