"Bar" serving (7)

I believe the answer is:

oysters

(Other definitions for oysters that I've seen before include "Yet Ross finds these marine creatures" , "Sources of pearls" , "Marine molluscs" , "they get eaten by the dozen" , "Fleshy bivalves, may yield pearls" .)

I've seen this clue in the Newsday.

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.