Pieces of eight (6)

I believe the answer is:

octets

I'm a little stuck... Click here to teach me more about this clue!

'pieces' is the definition.
(octet is a kind of piece)

I don't understand the rest of the clue.

(Other definitions for octets that I've seen before include "Groups of eight, often singers" , "groups of eight, say singers" , "Groups of eight peformers" , "Sets of eight" .)

I've seen this clue in the Evening Standard, the New York Times, the King Feature Syndicate, the Universal and the Wall Street Journal.

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.