| TRIBUTARY | River flowing into a larger one |
| TRIBUTARIES | Rivers flowing into a larger one |
| STRAYS | Wanders from a shallow container into a larger one (6) |
| INSET | Small picture, etc inserted into a larger one |
| GRANGES | Country houses a small river flowing into a big one (7) |
| WESER | River flowing into a sewer? |
| TRIREME | Vessel I used in two rivers flowing into a third |
| MOUTH | Where a river flows into a larger body of water |
| BALANCEOFPAYMENTS | In international economics, the difference between all money flowing into a country and out over a period of time (7,2,8) |
| IMPORTS | Goods flowing into a country (7) |
| COOPT | Subsume into a larger group |
| SUBSUME | Lump into a larger category |
| DEBOUCH | Flow into a larger body (7) |
| SUBSUMED | Absorbed into a larger group (8) |
| CATCHMENT | Area from which rainfall flows into a larger body (9) |
| FLUX | Act of flowing into a kiss after an attack of 'la grippe' (4) |
| WICKET | Word for a small door in or near a larger one originally, later any gate; a loophole or grill; a box-office window; an arrangement of stumps and bails in cricket; or, a batter's innings (6) |
| SEED | Unit of botanical life such as an acorn, bean, conker, kernel, key, nut, pea, pip or stone; a fragment of coral; a bubble in glass; or, a small crystal from which a larger one is grown (4) |
| BRANCH | A stream or river connected to a larger one (6) |
| HOBART | A city on a small island under a larger one (6) |
