Withdraw from a federal union (6)

I believe the answer is:

secede

(Other definitions for secede that I've seen before include "Make a formal withdrawal" , "Withdraw (from organization)" , "Withdraw from political union" , "Withdraw formally from membership of an organisation" , "Formally achieve independence" .)

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.