The most common and most likely answer to this crossword clue is the 7 letter word DIDEROT
I've seen this crossword clue in The Guardian
D
I
D
E
R
O
T
More clues leading to the result DIDEROT
- French philosopher thrived on European corruption
- Old philosopher turns to very left-wing papers
- French man of letters charged and executed on retirement
- Enlightened philosopher managed European corruption
- French philosopher produced European nonsense
- Philosopher rushed, performed the wrong way
- Queen held by another has time for French philosopher
- Philosopher’s daughter stupidly rioted
- Philosopher performed, having rushed up
- Philosopher rushed up after theologian, hugging one
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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.