| BUOY | A floating marker in the sea used as a guide or warning for ships and boats (4) |
| FOGHORN | Warning for ships |
| FIRTH | Scottish term for an arm of the sea, used for only one place in New Zealand (5) |
| LODESTAR | Standard used as a guide or model (8) |
| SEEDCORAL | Pinkish fragments from the sea used in jewellery |
| BERTHS | Spaces in port for ships and boats (6) |
| CHANDLER | Dealer in equipment for ships and boats |
| BUOYS | Floating markers in the ocean |
| CHANDLERY | Source of equipment for ships and boats |
| WAND | From the Old Norse word "vondr" meaning "shoot of a tree" or "twig", a rod used by a conjurer, diviner, fairy, magician etc; a conductor's baton; a marker in archery; or, a miniature brush/stick for a |
| MARE | Female of the horse, mule or zebra; or, a Latin word for sea, used to describe any one of the basalt plains on the Moon's surface (4) |
| ISBN | Initially there's a book marker in the bins (4) |
| GURU | In touring Uruguay, you need a guide or leader (4) |
| HAAF | Area of sea used for deep-sea fishing |
| OARS | It's round and is seen in most cars and boats (4) |
| TEES | Pegs for supporting stationary golf balls; or, markers in curling or quoits (4) |
| TEMPLATE | A shape used as a guide in cutting; a model; or, a paper pattern or cut-out for dressmaking or for patchwork (8) |
| KNOT | Unit of speed used by aircraft and boats (4) |
| OCHE | Boundary marker in Rochester (4) |
| PILOT | Word for a steersman originally, later a balloonist; an aviator; a mariner's navigational handbook for use at sea; or, a guide or leader at large (5) |