1605 Catholic conspiracy to upset the English establishment (9,4)

I believe the answer is:

gunpowder plot

(Other definitions for gunpowder plot that I've seen before include "Sixteen zero five" , "Thwarted conspiracy of 1605" , "Guy was actively involved in this" , "1605 assassination attempt against James I" , "Guy Fawkes's scheme" .)

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.