"Fold here" mark (4)
I believe the answer is:
line
(Other definitions for line that I've seen before include "An American queue" , "Row - occupation" , "business" , "Fill" , "Wrinkle; phone link" .)
I've seen this clue in the USA Today.
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.