Crossword Genius

Depart unceremoniously (6)

Ross

I believe the answer is:

decamp

(Other definitions for decamp that I've seen before include "Fold tents and go" , "Go away suddenly or secretly - leaving tent?" , "Split" , "Move on" , "Depart quickly and in secret" .)

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.