| CORALREEF | Essentially searching for a river eel distributed in underwater ecosystem (5,4) |
| SNIG | Term for a river eel... found in Burns Night! (4) |
| FORDEXPLORER | One searching for a river crossing? |
| TARTARE | Sailor volunteers starters of river eel served raw (7) |
| ELBE | River eel wriggling around Birkenhead (4) |
| THEGAMBIA | West African country named for a river |
| SUBMARINE | Bruise man developed in underwater vessel (9) |
| OCEANAUTS | Those who live in underwater installations to conduct research |
| NILEGREEN | Shade named for a river |
| PUSHER | A child's old rake-like utensil for nudging food onto a spoon; a stick for propelling the squid in underwater hockey; a perambulator; or, an aircraft propeller behind an engine (6) |
| ARCH | Upside-down 'U' structure, as in searching for a larch in March! (4) |
| SEEKER | One searching for a member of a singing group |
| REIMS | In Singapore, I'm searching for a source of fizz (5) |
| ATE | Case closed: In searching for a missing number, the forensic accountant concluded that seven ___ nine |
| FIND | Finish searching for a fathead in the back of beyond |
| HIPPO | Short name for a "river horse" that bathes in a "bloat", sleeps semi- submerged and walks underwater (5) |
| KELPFOREST | Underwater ecosystem made up of brown algae |
| KELP | Growing in underwater forests and absorbing carbon, a seaweed whose holdfast provides a habitat for seahorses, sea stars, jellyfish, anemones and other marine life (4) |
| BARRIERREEF | Prickly shrub surrounding a river bank in underwater structure (7,4) |
| SWANHUNTER | Hull builders on Tyneside, one searching for a pen? (4,6) |
