___-mo (3)

I think it could be either:

sec

slo

'mo' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for sec that I've seen before include "Mo or min?" , "Twinkling" , "(Of wines) dry" , "very short space of time" , "'Dry, as wine (3)'" .)

I've seen this clue in the L.A. Times Sunday, the LA Times, The Telegraph and the New York Times.

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.