| ROVER | Vehicle for exploring the Moon or Mars; or, a croquet ball that has run all hoops and can be pegged out (5) |
| RILLE | A narrow furrow on the moon or Mars (5) |
| HOOP | Iron band securing a stave of a barrel; or, a croquet arch (4) |
| MARE | Darkish level area on Moon or Mars (4) |
| MALLET | A long-handled wooden stick used for hitting a croquet ball (6) |
| RENTALCAR | Vehicle for exploring a new city |
| SYRIA | A plateau on Mars - or a country north and east of Lebanon (5) |
| ORB | Mars ... or a marble |
| SOL | Day on Mars, or a music note |
| OFFTHEPEG | Not made to measure how a croquet ball bounces? (3,3,3) |
| SOLO | A card game, dance, flight, musical piece, passage for voice or even a run, all alone or "for one" (4) |
| MALL | From the name of a historical alley in London for playing a croquet-like game, a shaded or sheltered walk; or, an enclosed shopping centre (4) |
| WINDGAP | A valley cut through a ridge by a river that has run dry (4,3) |
| LOOP | Circular frame-like item used for needlepoint, embroidery or tapestry; or, another name for a croquet arch (4) |
| ITALIANSUB | Vessel for exploring the depths of the Adriatic Sea? |
| SPACECRAFT | Vehicle designed for exploring the galaxy (10) |
| SPECIALDELIVERY | Amazing ball that has to be signed for |
| LAWN | An ancient glade, heath, pasture or open space between woods, but a modern neatly mown grassy carpet of a garden, meticulously manicured green space of a croquet association or carefully tended green |
| CANOE | Boat for exploring the Boundary Waters |
| SCUBA | Equipment for exploring the deep |
