Book That the Film Goodfellas Was Based Upon

This page is the CodyCross answer for the clue below from Working From Home, Group 1230, Puzzle 5 (Strict Deadlines).

Question is: Book That the Film Goodfellas Was Based Upon

and the answer is: WISEGUY

Word Meaning:

WISEGUY — Alternative spelling of wise guy.

Definitions from Wiktionary.