Crossword Genius

Sign of a packed house (3)

Ross

I believe the answer is:

sro

'sign of a packed house' is the definition.
(I've seen this in another clue)

This is the entire clue.

I've seen this clue in 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.