Short-sided rugby (6)

I believe the answer is:

sevens

(Other definitions for sevens that I've seen before include "Numbers" , "rugby competition" , "77" , "Form of Rugby Union" , "Card game; form of rugby" .)

I've seen this clue in The Independent.

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.