| MOSLEMS | Who are the only people allowed to visit Mecca? (7) |
| LEINSTER | Rugby team who are the only winners of the Guinness Pro 14 |
| MEN | Girl boss: Until Amelia Earhart did it, the only people who had flown a plane across the Atlantic Ocean were ___ |
| NOBELPRIZE | Award that 17- and 27-Across each won in two different categories, the only people ever to do so: 2 wds. |
| YARILDE | Also known as the Jarildekald people, who are the Australian Aboriginal people of the eastern side of Lake Alexandrina? (7) |
| LITERAL | Like the phrase "seeing eye to eye" for two people who are the same height |
| YEMENIS | Who are the people from the country that has Sana'a as its capital? (7) |
| SEASONS | Frankie Valli and the Four ____ , band who are the subject of the jukebox musical Jersey Boys (7) |
| DUMBEST | Of the Frenchmen who are the greatest, he is least intelligent (7) |
| GIBBONS | Which humanlike apes are the only ones to walk upright on their hind limbs? (7) |
| RINGERS | Who are the fastest shearers of a group (7) |
| NEPHEWS | Who are the sons of one's sisters (7) |
| PILGRIM | Flipping cheek, forbidding traveller to Mecca? (7) |
| LOFLIDA | Marooned on monorail in Sunshine State mecca? |
| WAUGH | Novelist who wrote The Foxglove Saga, Who Are The Violets Now?, Consider the Lilies and A Bed of Flowers (5) |
| CLARINET | The ____ and 1A are the only wind instruments played by more than one winner of the BBC Young Musician of the Year contest |
| WALK | Giant petrels are the only members of the Procellariidae family that are able to ___ effectively on land |
| CLIFFRICHARD | He and Elvis Presley are the only acts to make the UK singles charts in all of its decades (1950s-2000s) (5,7) |
| IHRAM | What are the two cloths worn by pilgrims on their way to Mecca? (5) |
| HAJJ | What is the name of the annual pilgrimage to Mecca? (4) |
