| PENFRIEND | Pal who communicates by letters (3-6) |
| CORRESPONDENT | One who communicates by letter (13) |
| CBER | Trucker who communicates by radio |
| PENPAL | Friend with whom one communicates by letter only |
| TWEETLASS | Girl who communicates 140 characters at a time? |
| INFORMANT | Person who communicates knowledge (9) |
| ALPHABETS | Ah! Meet my best pal who is well-lettered |
| ALGEBRAIC | Concerned with math by letters |
| TENANCIES | They are subject to negotiation by letters (9) |
| ANIMOSITY | Hostile feeling, or an antonym of the word formed by letters 1, 4, 7, 8 and 9 |
| WONDERFUL | Magnificent, or an antonym of the word formed by letters 1, 2, 5, 7, 8 and 9 |
| TELEPATHY | The supposed ability to communicate by thought |
| DROPALINE | Friend and I, taking part in bee, communicate by letter (4,1,4) |
| SHAMAN | Healer who communicates with the world of spirits (6) |
| MUTUALFRIEND | Pal who's one's pal's pal |
| WRITES | When one communicates by mail, one does what (6) |
| MIME | Actor who communicates using gestures and facial expressions (4) |
| COW | One who communicates in moo |
| GOLDENAPPLE | Creepy pen pal who ogled the legendary quince (6,5) |
| MIMERS | Actors who communicate entirely by gestures and facial expressions |
