Related Clues:

• 47 Down rank
• Burns's rank, in "M*A*S*H"
• Military or music abbr.
• Hot Lips Houlihan's rank: Abbr.
• Not minor: Abbr.
• Econ or Anthro, e.g.
• Key tag?: Abbr.
• Sgt. follower
• ROTC instructor, perhaps
• Lt. col.'s inferior
• USAF officer
• Like some keys: Abbr
• Coll. student's declaration
• Key abbr
• Rank below Lt. Col