The most common and most likely answer to this crossword clue is the 8 letter word RESIGNED
I've seen this crossword clue in The Guardian
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More clues leading to the result RESIGNED
- Useless designer stepped down
- Left work to see Oliver, say, but with The Omen thrown in
- Calmly submissive, did not keep appointment
- Philosophical novel one ends eg with hint of realism
- Stoical about fate as others indicated? No way!
- Philosophical Society dons were in control
- Incompetent designer left post
- Quit when Dolceswapped ends
- Gave up being philosophical
- Gender is in question, so philosophical
Buddy explains!

The straight part
We know that "philosophical" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case philosophical = resigned.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 RESIGNED mean?
RESIGNED verb- To sign again; to provide one's signature again.
- (by extension) To sign a contract renewing or restarting a professional relationship, such as that of a professional athlete with a sports team.
- To give up; to relinquish ownership of.
- To hand over (something to someone), place into the care or control of another.
- To quit (a job or position).
- To submit passively; to give up as hopeless or inevitable.
- Characterized by resignation or acceptance.