| SONOF | and 21 Across Name by which the US murderer David Berkowitz is known (3,2,3) |
| SAM | Name by which the US murderer David Berkowitz is known (3,2,3) |
| SONOFSAM | Name by which American serial killer David Berkowitz is known (3,2,3) |
| BELGRADE | Major Serbian city in which the US accidentally bombed the Chinese Embassy during the Kosovo crisis |
| SCRANTON | City in which the US sitcom The Office is set (8) |
| BLUEGRASS | What is the nickname by which the US state of Kentucky is known? (9) |
| FLOJO | Name by which the US athlete Florence Griffith Joyner was also known (3-2) |
| LBJ | Name by which the US president from 1963-69 was known (1,1,1) |
| LENDLEASE | The mechanism by which the US provided materials of war to the nearly bankrupt Allies in WWII (4-5) |
| TRIMESTER | Any one of the three terms into which the US academic year is divided (9) |
| LITTLEBIGHORN | Site of the battle in which the US 7th Cavalry were routed in 1876 (6,3,4) |
| OVALOFFICE | Room from which the US President makes significant addresses to the nation |
| MIRRLEES | And 11 Across Name of Class 37 diesel-electric 37901 (8, 7) |
| PONDEROSA | (GKN) Fictional Nevada ranch on which the US western series Bonanza (1959-73) |
| AVIV | Tel ___ (Israeli city from which the US. moved its embassy in 2018) |
| BELOHORIZONTE | Brazilian city in which the United States beat England in the 1950 World Cup finals |
| SYCAMORE | With 15-Across, name of a recently felled historic tree near Hadrian's Wall |
| KOREANWAR | 1950s' conflict in which the US intervened |
| ASTOPPED | (and 14 across, 20 across and 21 across) Proverb suggesting that even normally unreliable people or things can occasionally get it right (8) |
| BATTLEOF | And 21 Across and 5 Down and 14 Down AKA Class 91, 9111 (6,2,7,8,6) |
