Freestyle like Ella Fitzgerald (4)

I believe the answer is:

scat

(Other definitions for scat that I've seen before include "Wordless jazz singing" , "Animal droppings - small silvery fish" , "Go away quickly" , "Style of jazz singing" , "Shoo!" .)

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.