System of first principles underlying a philosophical enquiry (10)
I believe the answer is:
metaphysic
(Another definition for metaphysic that I've seen is " Philosophical groundwork".)
I've seen this clue in the Sydney Morning Herald.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free.
Check out my app
or
learn more
about the Crossword Genius project.