| 100% | TEES | 4 | The middle letters of "letter" |
| 81% | OWE | 3 | Word represented by the middle letter of 22-Down |
| 81% | GEE | 3 | Sound of the seventh letter |
| 81% | ELL | 3 | Sound of the twelfth letter |
| 81% | ZEE | 3 | Sound of the last letter |
| 81% | CEE | 3 | Sound of the third letter |
| 79% | EMS | 3 | Middle of the alphabet letters |
| 75% | PRYNNE | 6 | Hester __, heroine of The Scarlet Letter |
| 73% | HAWTHORNE | 9 | Surname of the author of the Scarlet Letter |
| 72% | DUMPED | 6 | On the receiving end of a Dear John letter |
| 72% | ELL | 3 | Old measure of length, 45 inches; the 12th letter |
| 72% | PLOTS | 5 | Units of land, with or without the first letter |
| 72% | ASSISI | 6 | Italian town with three instances of the same letter |
| 71% | RINGO | 5 | Rock star whose name is spelled out by the middle letters of 16-, 18-, 39-, 61- and 64-Across |
| 71% | NMI | 3 | Letters used in the absence of a letter |
| 71% | ZEE | 3 | Sound of the last English letter |
| 71% | LAMBDAS | 7 | Plural of the eleventh Greek letter |
| 70% | ENC | 3 | Abbr. at the bottom of a letter |
| 70% | MESSRS | 6 | Abbr. at the head of a letter |
| 70% | ENCL | 4 | Abbr. at the bottom of a letter |
| 69% | XOXO | 4 | “Love” letters at the end of a letter |
| 69% | ENCL | 4 | Abbr. at the bottom of a business letter |
| 69% | ENCS | 4 | Abbr. at the bottom of a business letter |
| 69% | ENC | 3 | Abbr. at the bottom of a business letter |
| 69% | ENCL | 4 | Abbr. on the bottom of a business letter |
| 69% | ENC | 3 | Abbreviation at the bottom of a business letter |
| 68% | FACECARD | 8 | It may be half of a blackjack … with or without the shaded letter |
| 68% | XOXO | 4 | "Kisses and hugs," at the end of a letter |
| 68% | OXO | 3 | Hug, kiss, hug, at the end of a letter |
| 68% | ALINE | 5 | Cut of a skirt, like the first capital letter |