| CUBIT | About 18 inches, in ancient times |
| ROOKS | These birds resemble the carrion crow in size (45 cm [18 inches]) and in black coloration, but the adult usually has shaggy thigh feathers and has bare white skin at the base of its sharp bill. In Mac |
| ONECUBIT | Ancient Greek measurement that is roughly 18 inches |
| EMU | Bird whose feathers can reach 18 inches long |
| ROMANIA | Country in south-east Europe (91,699 sq miles; pop about 18 million). It joined NATO in 2004 (7) |
| ZAIRE | Former name for large country in southcentral Africa (about 900,000 sq miles; pop about 18 million) (5) |
| CST | About 18 weeks in OK |
| HALYARD | Rope that's eighteen inches when foot's added? (7) |
| MALAWI | Country in south-east Africa (45,747 sq miles; pop about 18 million), independent since 1964 (6) |
| LIBLAB | The UK's best-known ____ pact lasted for about 18 months, starting in March 1977 |
| PETERHEAD | Large town in the north-east (pop about 18,,000), a major fishing port (9) |
| ECUADORIAN | Relating to a country in South America (pop about 18 million), independent since 1822 (10) |
| TERA | In 2013 the entire world consumed about 18 ___watts of energy |
| METRE | Fundamental unit of length in the metric system and in SI units that is equal to approximately 39.37 inches in the British Imperial and United States Customary systems. (5) |
| ELL | Ancient measure of length, in England equal to 45 inches, in Scotland 37.2 (3) |
| THEISTIC | Religious jerk, about 18 (8) |
| TEMPERA | A traveller gathered about 18 (7) |
| ARE | Concern about 18 (4) |
| HATTER | Wonderland character who is mad about 18 (6) |
| EISENSTEIN | Film maker genius, about 18 (10) |