| TELEGRAPHPOLE | Early supporter of communication (9,4) |
| APOSTLE | Ardent early supporter of a cause (7) |
| APOSTLES | Ardent early supporters |
| MIDDLEENGLISH | Old means of communication, a suitable part of core curriculum? (6,7) |
| PLAINLANGUAGE | Clear form of communication from German, maybe, behind area of flat land (5,8) |
| BUSHTELEGRAPH | System of communication by means of "talking drums" or by the gossip network with far-reaching branches known as the grapevine (4,9) |
| SPEECHTHERAPY | Treatment of communication disorders (6,7) |
| GENERATIONGAP | Lack of communication between age groups (10,3) |
| WALKIETALKIES | Method of communication used in "Stranger Things" |
| BROKENENGLISH | Difficult means of communication |
| CARRIERPIGEON | Homer's means of communication (7,6) |
| RAILWAYBRIDGE | It takes over lines of communication |
| MIRRORWRITING | Tabloid reporter's correcting backward sort of communication (6,7) |
| LINGUAFRANCAE | Way of communication between people who speak different mother tongues (6,7) |
| PIDGINENGLISH | Form of communication for an American who isn't fluent in the local language, perhaps |
| LUGHOLE | Expression of amusement about one of disgust on electronic channel of communication (7) |
| CROSSTALK | Unwanted transfer of signals between channels of communication (5-4) |
| EGYPTOLOGY | Study of an ancient civilisation who used hieroglyphics as a form of communication and mummification |
| MEDIA | Clairvoyant showing no sign of hesitation; instead a means of communication (5) |
| MASSMEDIA | Means of communication that reach large numbers of people in a short time (4,5) |