Advocacy for a cause (10)
I believe the answer is:
evangelism
(Other definitions for evangelism that I've seen before include "Zealous advocacy of a cause" , "Preaching" .)
I've seen this clue in The Guardian.
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.