| OKAVANGO | Fourth-longest river system of southern Africa, rising in Angola and forming part of the border with Namibia before draining in Botswana (8) |
| RIOGRANDE | The fourth-longest river system in the United States (3,6) |
| MONSOON | wind system of southern Asia |
| NIGER | A river in West Africa, rising in southern Guinea; the third-longest river in Africa (5) |
| TWEED | Fourth-longest river of Scotland, forming a 17-mile stretch of the border with England (5) |
| LOCHLOMOND | Celebrated in a folk song and forming part of the region that contains the Great Trossachs Forest, the largest freshwater lake in Scotland by surface area (4,6) |
| TUBA | From the Latin meaning "trumpet" and forming part of an orchestra, the largest. lowest-pitched instrument in the brass family (4) |
| RIOBRAVO | Name in Mexico for the river that forms part of the border with the USA |
| ZAMBEZI | A river in Africa, rising in Northwest Zambia and eventually emptying into the Indian Ocean (7) |
| KASAIRIVER | The 2153km long river that forms the border of Angola and the Democratic Republic of Congo (5,5) |
| DNIEPER | The fourth-longest river in Europe, known to the Greeks as the Borysthenes |
| KASAI | A river of southwestern Africa that rises in central Angola and flows east and then north (forming p |
| CHENAB | River originating in Himachal Pradesh, flows through Jammu and Kashmir and is a key tributary of the Indus River system? (6) |
| BERMEJO | River of N Argentina forming part of the border with Bolivia (7) |
| ZAMBESI | Fourth-longest river of Africa, on which the Victoria Falls are located (7) |
| YENISEI | Siberian river rising in Mongolia which is the largest river system flowing to the Arctic Ocean (7) |
| CHOKWE | Ethnic group of Central Africa found in Angola, Zambia, the Democratic Republic of Congo and Namibia |
| RYDE | Resort on the Isle of Wight whose pier is the fourth longest in the United Kingdom |
| ORANGE | River in S. Africa rising in N.E. Lesotho (6) |
| WILDFLOWERS | Plants growing naturally and forming an intrinsic part of the ecosystem of woodlands, meadows and country lanes such as bluebells, cowslips, ramsons, wood anemones or violets (4,7) |
