Crossword Genius

Services that can't be sent back (4)

Ross

I believe the answer is:

aces

(Other definitions for aces that I've seen before include "Champions" , "winning shots" , "wartime pilots?" , "Ones or elevens in cards" , "winning points" .)

I've seen this clue in The Guardian.
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.