Obsolete British coin (6)

I believe the answer is:

guinea

(Other definitions for guinea that I've seen before include "105p in old money" , "some land" , "so-called pig that's experimentally tested?" , "Old sum of money - west African republic" , "Gold coin - West African republic" .)

I've seen this clue in The Telegraph and The 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.