| Answer | Crossword Clue |
|---|---|
| POSTMORTEM | Dead-letter office |
| NIXIE | Dead letter, in post office talk |
| RUNE | Dead letter? |
| EDH | Dead letter |
| MISSENT | Like many a dead letter |
| DEAD | .. letter office |
| MEMO | Office letter |
| DEAD | ...-letter office |
| TAKEA | "... letter" (office order) |
| NIXIE | Undeliverable letter, in post-office slang |
| NIXY | Letter the Post Office cannot deliver. |
| NIXIE | Undeliverable letter, in post-office talk |
| STE | Abbr. on a letter to an office complex |
| STE | Abbr. on a letter to an office building |
