Polo team, for instance (6)
I believe the answer is:
tetrad
(Other definitions for tetrad that I've seen before include "number of Gospel writers" , "Group or set of four" , "quartet" .)
I've seen this clue in the Newsday.
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.