Here are the possible solutions for don's code of silence clue
Answer
Clue
Relevancy
omerta
Clue
Don's code of silence
Code of silence
Mobster's code of silence
Sicilian code of silence
Mafioso's code of silence
Definition
(Italian) the Mafia code of honour requiring silence about criminal activities
dag
Clue
Former UN leader Hammarskjöld [Note: The circled letters comprise a three-word instruction that, when applied to one square in the completed grid, reveals a group who might follow a code of silence]
Definition
to remove clotted tufts of wool from a sheep
mafia
Clue
Its code of silence is called omertà
Definition
(Italian) a secret criminal organization, also MAFFIA
