| GRANTA | Name of the river constituting the upper reaches of the River Cam (6) |
| HORSHAM | Market town on the upper reaches of the River Arun in West Sussex |
| TAURUS | Mountain range in southern Turkey that runs parallel to the Mediterranean coast. It extends along a curve from Lake Egridir in the west to the upper reaches of the Euphrates River in the east. (6) |
| AKEDAH | Town in the Bible guarding the upper reaches of the Valley of Elah (6) |
| WHERRY | Old cargo boat used on the River Cam and the Broads (6) |
| TREETOPS | Word, capturing the essence of the upper reaches of forests, for the canopy-forming crowns of aspens, birches, chestnuts, Douglas firs, elms and all other arboreal woody plants (8) |
| AMSTEL | Also a well-known brand name, what is the name of the river which runs through Amsterdam? (6) |
| THAMES | Sam has the name of the river (6) |
| BAMBOO | Constituting the diet of the giant panda, a tall woody grass and the world's fastest-growing land plant (6) |
| MEDIAN | Constituting the middle value of an ordered set of values. (6) |
| DEPTHS | Fathomless reaches of the sea |
| MATTER | Related to "mother", word for the physical substance constituting the observable universe (6) |
| ETHER | Upper reaches of the air |
| PIGEON | This bird's name refers to any of several hundred species constituting the family Columbidae (order Columbiformes). One species is a particularly adroit navigator and has been used to carry messages. |
| TALMUD | Collection of writings constituting the Jewish civil and religious laws |
| PHRASE | A few words strung together constituting the sharp note (6) |
| ENTIRE | Constituting the full quantity or extent; complete (6) |
| CHANGSHA | Capital of the Hunan province of SE China, on the lower reaches of the Xiang River (8) |
| SWATHE | What's hacked through extreme reaches of scythe? |
| STAINS | Spots subs escaping outer reaches of Nimrod |
