| NGUYEN | The anglicization of the most common Vietnamese surname |
| BATOR | Ulan ___ (previous Anglicization of the capital of Mongolia) |
| TRAN | Second-most common Vietnamese surname |
| AGA | One of the most common of the five major classes of immunoglobulins. |
| PHAN | Common Vietnamese surname |
| WOODMOUSE | One of the most common small mammals of the UK and British Isles (4,5) |
| REDMAPLE | Acer rubrum, one of the most common and widespread trees of eastern and central North America (3,5) |
| NUTS | One of the most common food allergies (4) |
| USUAL | Of the most common type (5) |
| SOCKEYE | Anglicization of an indigenous word meaning "red fish" (7) |
| ULAN | ___ Bator (previous Anglicization of Mongolia's capital) |
| MOTORBIKE | Common Vietnamese transport |
| ACORN | Fruit of the oak tree, the most common of which on Mallorca is the Holm oak (5) |
| ELLE | One of the most common 36-Across seen in crosswords |
| LITTLEJOHN | The only member of Robin Hood's Merry Men present in the most common account of his death |
| ARACHNID | A member of a class of animal of which spiders are the most common (8) |
| DICE | Small objects (polyhedrons) used as implements for gambling and the playing of social games. The most common form is the cube, with each side marked with from one to six small dots (spots). (4) |
| SATO | A recent study in Japan warns that owing to antiquated marriage-name laws, everyone in the country will have this surname by the year 2531; it's already the most common there |
| GREBE | Diving bird, the most common in Mallorca is the Little which breeds on the island, whereas the Black-necked and Great Crested are winter visitors (5) |
| LOOP | The most common basic pattern of the human fingerprint (4) |