Obligation evidence (4)

I believe the answer is:

chit

(Other definitions for chit that I've seen before include "Docket; pert girl" , "Pert young lady" , "Informal receipt" , "Official voucher" , "Receipt; a child" .)

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.