The most common and most likely answer to this crossword clue is the 8 letter word HEDONIST
I've seen this crossword clue in The Times
H
E
D
O
N
I
S
T
More clues leading to the result HEDONIST
- Playboy in robbery framing mafia boss
- Teacher interrupting robbery, a bon vivant
- Model done with this playboy
- Epicurean academic involved in robbery
- Fellow into crime, pleasure-seeker
- Crime involving academic pleasure-seeker
- Job entertains teacher, a seeker of fun
- Robbery involves Mafia leader who seeks pleasure?
- Teacher is embraced by heterosexual bon vivant
- . Person seeking satisfaction from Mafia boss involved in robbery
Buddy explains!

The straight part
We know that "Playboy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case playboy = hedonist.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 HEDONIST mean?
HEDONIST noun- Someone devoted to hedonism.