Crossword Genius

Either side of a beaming grin, in a phrase

Ross

I believe the answer is:

ear

(Other definitions for ear that I've seen before include "'Give every man thine ..., but few thy voice'/Hamlet" , "Aural appendage" , "Seed-bearing part of corn" , "willingness to listen" , "See 24" .)

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.