Highest-ranking British peers (5)

I believe the answer is:

dukes

(Other definitions for dukes that I've seen before include "Noblemen" , "Titled gents or slangy fists" , "Peers of the realm" , "eg 21, 22 and Plaza-Toro" .)

I've seen this clue in The Irish Times.

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.