Sprinkling on a lox bagel (6)

I believe the answer is:

capers

(Other definitions for capers that I've seen before include "Jumps, runs about playfully" , "Pranks and pickled buds" , "Light-hearted fun" , "Jumps about playfully, or flavouring buds" , "Scrape leading to frolics" .)

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.