Beefeater — one may (anag) (6)

I believe the answer is:

yeoman

(Other definitions for yeoman that I've seen before include "Historical freeholder" , "Officer in royal household or a small farmer" , "Warder of the Tower of London" , "Royal attendant" , "Historically, English freeholders and footsoldiers" .)

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.