Possible Clues:

• FBI agents appearing in set piece
• Separate odd bits of sledge or sleigh intended for delivery
• Part of series involving Federal agents
• Part seen occasionally in 'stinker', mag pens in review
• Son, for example, intended to cut out a piece
• Part or section
• Subdivision from group including FBI agents
• Piece of an orange
• Gem sent out is cut up
• Do division in maths, e.g. mentally