Related Clues:

• Custom
• Zeno, notably
• One who grins and bears it
• Confirmation, for one
• Confession, e.g.
• Like Zeno
• Stiff-upper-lip type
• Initiation procedure
• Zeno was one
• Ceremonial act
• Long-suffering
• Stone-faced
• Hard to move
• Bar mitzvah, e.g.
• Indifferent