Related Clues:

• New Naval grad.
• Grad. of 61-Down
• It's just below lieut. jr. grade
• Half 19-Down
• Navy ofcr.
• Triple in Cincinnati?
• PT boat crewman: Abbr.
• Uncanny trio?
• Pulver title in ''Mister Roberts'' (Abbr.)
• Inning trio
• Half of none?
• Sonnet center
• Position on the Enterprise: Abbr.
• Cunning trio?
• Ninja pair?