Crossword Genius

Before "blastoff" (3)

Ross

I believe the answer is:

one

(Other definitions for one that I've seen before include "If upper-class, perhaps I" , "time" , "Sole; number" , "I can mean this" , "Single person or thing" .)

I've seen this clue in the Penny Press.
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.