Enter a clue or pattern or both:
The Clue
One in search of heretics (10 letter answer)
The Answer
INQUISITOR
Tags
Notes
The answer INQUISITOR is so rare that it appears less than once every 2500 puzzles.
Definition
INQUISITOR as a noun:
1. (inquisitor, interrogator) = a questioner who is excessively harsh
2. an official of the ecclesiastical court of the Inquisition