Enter a clue or pattern or both:
The Clue
Underminer of principles (9 letter answer)
The Answer
SUBVERTER
Tags
Notes
The answer SUBVERTER is so rare that it appears less than once every 2500 puzzles.
Definition
SUBVERTER as a noun:
1. (revolutionist, revolutionary, subversive, subverter) = a radical supporter of political or social revolution