Answer: OMERTA

AnswerCrossword Clue
OMERTAMario Puzo book named after a code of silence
OMERTACode broken by squealers
OMERTAMafia law of silence
OMERTACode of silence in Sicily
OMERTAMafioso's code of silence
OMERTAMario Puzo best seller
OMERTASworn secrecy
OMERTASequel to Puzo's "The Last Don"
OMERTAGag rule, of a sort
OMERTA"The Last Don" sequel
OMERTAMobster's code
OMERTACode broken by Joe Valachi
OMERTACode that's dangerous to break
OMERTAEnforced silence
OMERTACode broken by some singers
OMERTA"Don't tell" code for a don
OMERTA'The Godfather' code
OMERTAUnderworld code of silence
OMERTADon's code of silence
OMERTACapo's code of silence
OMERTACode of silence: It.
OMERTAMario Puzo's last novel
OMERTAGangster code
OMERTAPledge of silence
OMERTACode keeping capos quiet
OMERTAMario Puzo book
OMERTACode you don't want to break
OMERTARule against singing
omertathe Mafia code of honour
omertasecrecy sworn to by oath; code of silence
OMERTAGag rule?
OMERTAConspiracy of silence
OMERTAMafia's code of silence
OMERTACode of silence
OMERTAMario Puzo's final novel
OMERTAIt keeps a Mafioso mum
OMERTAMario Puzo novel
OMERTAItalian code of silence
OMERTAPuzo novel
OMERTALast book in Puzo's "Godfather" trilogy