Answer: PPS
The answer PPS has 69 possible clues. See the results below.
Possible Clues:
- Second afterthought, for short
- End-of-letter letters
- Second addendum to a letter ... and a hint to 18-, 34-, 44- and 62-across
- Second letter addendum: Abbr.
- Second letter addendum
- Second afterthought: Abbr.
- 'And one more thing,...' (abbr.)
- Letters before a second afterthought
- Second afterthought, in a ltr.
- 'Also, I almost forgot ...': Abbr.