| MCKINLEY | Former president of the US and its highest mountain (8) |
| HAMILTON | A founding father of the US, and the eponymous subject of a 21st-century hit musical (8) |
| UNCLESAM | Figure used as a symbol of the US and to urge young men to join the US army in WWII (5,3) |
| TREEFROG | Arboreal amphibian such as the Gray ___ of the US and Canada (4,4) |
| COLORADO | State of the USA and name of Gresley 'A3' 60094 (8) |
| AMERICAN | ___ marten, weasel-like mammal of the USA and Canada (8) |
| REPROVES | Censures us and it's all over how some reps behaved! |
| TRUJILLO | Former president of the Dominican Republic, after whom Santo Domingo was once named (8) |
| JOHN | And 21 The sixth President of the US and the son of the second US President (4,6,5) |
| LONSDALE | British boxing award named after a former president of the National Sporting Club (8,4) |
| QUINCYADAMS | The sixth President of the US and the son of the second US President (4,6,5) |
| WILLS | Playing in the first half of the twentieth century, she is still considered to be one of the greatest all-time tennis stars of the US and the world; Helen ... Moody |
| PIERCE | Which brigadier general from the Mexican War was the 14th president of the US and is noted for his vacillation over the issue of slavery? (6) |
| OHIO | 17th state of the US - and one species of the horse chestnut genus (aesculus) is known as the ___ buckeye! (4) |
| ALEUTIANISLANDS | Which archipelago in one definition is the westernmost part of the US, and in another is the eastern |
| EASTCOAST | The Atlantic seaboard of the US and New Zealand's North Island between Opotiki and Gisborne (4,5) |
| UNESCO | Inefficiency and political bias were reasons stated for the mid-1980s withdrawal of the US and UK from which organisation? (6) |
| RIOGRANDE | River on the border of the US and Mexico (3,6) |
| NIAGARA | Falls on the border of the US and Canada (7) |
| ERIE | Lake on the border of the US and Canada |