| Rating | Solver | Clue |
|---|---|---|
| BROOK | Watercourse | |
| CHANNEL | Watercourse | |
| CANAL | Watercourse | |
| RIVER | Watercourse | |
| WADI | Dried watercourse | |
| GULLEY | A watercourse | |
| STREAM | A watercourse | |
| RILL | Small watercourse | |
| RIVERBOAT | Watercourse transport | |
| SWANRIVER | Perth's principal watercourse | |
| RIVERSIDE | Next to a watercourse | |
| STREAMLINING | Improving flow of inner layer of watercourse | |
| CREEK | Small watercourse could start to really stink | |
| BARRANCA | A ravine caused by heavy rains or a watercourse. | |
| BED | The bottom of a watercourse, or of any body of water; as, the bed of a river. | |
| BANK | The margin of a watercourse; the rising ground bordering a lake, river, or sea, or forming the edge of a cutting, or other hollow. | |