Related Clues:

• Capt.’s subordinate
• Drill instructor, often: Abbr
• Capt.’s underling
• Cpl.’s superior
• USMC designation
• Bilko or Pepper: Abbr
• Storage format hidden in 'disc drive'
• Navy officer below a capt
• Many a drill instructor: Abbr
• Boot camp boss: Abbr
• Rank above corporal (Abbr.)
• Drill instructor's rank, often: Abbr
• One crying 'Hup, two, three, four!': Abbr
• Bootcamp VIP
• UK inspector's subordinate