Related Clues:
- Letter need
- "Forever" post office purchase
- The man wearing usual coat
- Postage piece
- Notary's implement
- What a shredder shreds
- One stuck in a corner?
- Unit of stamps
- With 27-Across, slippery hazard
- Bit of postage
- Rubber-__ (approve unquestioningly)
- Bedding component
- Passport Control device
- Corner square?
- Part of a philatelist's collection