Related Clues:

• Dept. of the Treasury dept.
• 1040 issuer
• Collectors' org.
• Return address letters?
• Return addressee?
• Not ours
• Controversial agcy. since 1862
• Part of a return address?
• 1040 sender
• Unpopular org. in April
• Levy collector, for short
• Recipient of many unhappy returns: Abbr.
• Capone's pursuers
• Spring addressee
• Levy collector