Related Clues:

• PX patron, perhaps
• Marines subordinate, for short
• Bilko, casually
• One who knows the drill?
• Bilko, for one: Abbr.
• Sgt. Snorkel, for one
• It's below grade one: Abbr.
• Sgt., say
• Sgt. maj., e.g.
• D.I., for one
• Base boss
• An NCO, informally
• Sgt., for ex.
• Radar was one: Abbr.
• T.Sgt., e.g.