| SARDINIA | Mediterranean island with some 7,000 stone structures known as nuraghi (8) |
| HAMMERHEAD | Shark with eyes positioned at either end of a structure known as a cephalofoil |
| TERRITORIES | Lands finally at the other far island with some MPs (11) |
| WALPOLE | Author of The Castle of Otranto and some 7,000 letters who was the youngest son of Britain's de facto first prime minister and created Strawberry Hill House (7) |
| BALI | Island with some wild cannibals! (4) |
| TONGA | Islands with some halfwit on ganja (5) |
| DOLMENS | The same liberal convenience in stone structures (7) |
| PILLARS | These 56 stone structures represent the states and territories extant when 19-Across ended |
| GRANITE | These 56 stone structures represent the states and territories extant when 19-Across ended |
| CREOSOTE | O so cosy on Mediterranean island with protection from the weather (8) |
| MAINMAST | Mother carrying in stone structure used on board ship (8) |
| RESEARCH | Thoroughly investigate engineers over empty stone structure |
| BELGRADE | Capital city in southern Europe (popabout 1.7 million), dating from around 7,000 BC (8) |
| CRETE | Mediterranean island with Heraklion as its capital (5) |
| MEDIA | Small Mediterranean island with top-grade channels of communication |
| CORSICA | Mediterranean island with the capital Ajaccio (7) |
| MALTA | Mediterranean island with the George Cross (5) |
| CAPRICCIO | Musical piece from Mediterranean island with two clubs and a satellite (9) |
| GOZO | Mediterranean island with the capital Victoria (4) |
| LEAF | Photosynthetic structure known variously as a blade, bract, cotyledon, frond, needle or pad; or, something foliaceous or thin, such as a sheet of filo pastry, gold, paper or tobacco (4) |