| RAZORCLAM | Sand-burrowing mollusc with a long, tubular shell (5,4) |
| COCKLE | An edible, burrowing mollusc with a strong ribbed shell (6) |
| PIPEFISH | Swimmer with a long, tubular snout |
| ANTEATER | Toothless mammal with a long, tubular snout used for eating termites (8) |
| RAZORSHELL | Bivalve mollusc with a long slender outer casing (5,5) |
| ALPHORN | A long tubular wooden instrument used in mountainous areas (7) |
| GASTROPOD | Type of mollusc with a flattened muscular foot for locomotion and a head that bears stalked eyes (9) |
| HARPSHELL | Marine mollusc with a ribbed outer casing (4,5) |
| CHIVE | What relative of the onion with dense tufts of long, tubular leaves is used as a herb? (5) |
| COCKLES | Sand-burrowing edible molluscs, having rounded shells with radiating ribs (7) |
| PIEELINE | Long tubular conduit for transporting petrol or gas |
| PIPI | Symbolic ratio twice for small burrowing mollusc |
| CLAM | Burrowing mollusc such as the quahog (4) |
| OYSTER | Bivalve mollusc with a shuck for a shell; or a pale beige colour with a hint of pinkish-grey (6) |
| SCALLOP | A mollusc with a fan-shaped shell; one of its valves, as a pilgrim's badge; or, a little dish, potato fritter or wavy edge, like said fluted shell (7) |
| CYLINDER | Long tubular shape (8) |
| EELS | Sand-burrowing marine creatures |
| GAPER | Burrowing mollusc; anglerfish |
| BORER | Wood-burrowing mollusc |
| SNAIL | Synonymous with the conventional postal system or anything slow-moving, a mollusc with a house in the form of a whorled shell which it carries on its back (5) |