Answer:

OMERTA

Answer	Crossword Clue
OMERTA	Sicilian code of silence
OMERTA	Conspiracy of silence
OMERTA	Mafia's code of silence

OMERTA	Code of silence
OMERTA	Mario Puzo's final novel
OMERTA	It keeps a Mafioso mum
OMERTA	Mario Puzo novel
OMERTA	Italian code of silence
OMERTA	Puzo novel
OMERTA	Last book in Puzo's "Godfather" trilogy
OMERTA	Don's code

OMERTA	Mobster's code of silence
OMERTA	Mobster's code of honor
OMERTA	Gangster's code of silence
OMERTA	Puzo's last novel
OMERTA	Gag rule?
OMERTA	Mafioso's code
OMERTA	Posthumously published work by Mario Puzo
OMERTA	Code broken by rats

OMERTA	Mario Puzo bestseller
OMERTA	Mario Puzo sequel
OMERTA	Mafia code of silence
OMERTA	The story of Astorre Viola
OMERTA	Principle of Puzo prose
OMERTA	Follow-up to "The Sicilian"
OMERTA	The Mafia's code of silence
OMERTA	"Zip it" code

OMERTA	Silence of the Sopranos
OMERTA	Family code?
OMERTA	"Don't tell" code for a don
OMERTA	Code broken by squealers
OMERTA	Mafia law of silence
OMERTA	Code of silence in Sicily
OMERTA	Mafioso's code of silence
OMERTA	Mario Puzo best seller

OMERTA	Sworn secrecy
OMERTA	Sequel to Puzo's "The Last Don"
OMERTA	Gag rule, of a sort
OMERTA	"The Last Don" sequel
OMERTA	Mobster's code