Sharks and minnows, essentially (3)

I believe the answer is:

tag

(Other definitions for tag that I've seen before include "Identity badge" , "Identity disc" , "Refrain" , "Earmark" , "Label or sticker" .)

I've seen this clue in the LA 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.