| ACHESON | The 51st US Secretary of State |
| MISERERE | Before the skinflint goes to the front to say the 51st psalm (8) |
| CANADA | Country that Trump offered to include in the 'Golden Dome' system at zero cost if it becomes the 51st state. (6) |
| RELAX | "Chill out, we'll never become the 51st state" |
| CASCADIA | Though it wouldn't make British Columbia the 51st state, a secessionist movement named for a local mountain range would join B.C., Oregon, and Washington into one political entity called this |
| STATEHOODER | One who favors making Puerto Rico the 51st, e.g. |
| LIST | The 51st catalogue |
| NAVAJONATION | This proposed 51st state in the Southwest would be larger than 10 existing states; it already enjoys substantial autonomy, as its name suggests |
| PUERTORICO | Potential 51st state |
| MAILINGLIST | Headmaster becoming unwell with 51st series of addresses (7,4) |
| THEWHO | UK band that toured in its 51st year (3,3) |
| COLLIE | Old King ate 51st dog (6) |
| ABBA | Quartet now in its 51st year |
| CANNOLI | Italian pastry from 51st numbered container? (7) |
| CORDELLHULL | US secretary of state who helped to found the United Nations; winner of the Nobel Peace Prize in 1945 (7,4) |
| DEANACHESON | US Secretary of State in the administration of President Harry S Truman from 1949 to 1953 |
| SEWARD | William Henry, US secretary of state responsible for the purchase of Alaska (6) |
| VANCE | Cyrus ___ was the US secretary of state for most of Jimmy Carter’s term as president |
| JOHNKERRY | US Secretary of State, from 2013 to 2017, who had fought the 2004 presidential election for the Democrats (4,5) |
| REXTILLERSON | The current US Secretary of State: 2 wds. |
