Small finch — ten-nil (anag) (6)

I believe the answer is:

linnet

(Other definitions for linnet that I've seen before include "Finch formerly popular as a pet" , "Brown-gray kind of finch" , "See three down" , "Brown-grey kind of finch" , "A British finch" .)

I've seen this clue in The Guardian.

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.