Possible Clues:

• Part of LBJ, e.g.: Abbr.
• Bit of stitching: Abbr.
• Bit of handkerchief embroidery: Abbr.
• 'I'm only ___ for the money'
• Quick O.K.: Abbr.
• Part of JFK?: Abbr.
• Ltr. with a period
• Ltr. of approval?
• Part of JFK: Abbr.
• J, F or K, e.g., in J.F.K.: Abbr.