| DZHO | One spelling of the name for a sterile male hybrid of a yak and a cow |
| CATTALO | A hybrid between a buffalo and a cow |
| CHEWTHEFAT | Yakety-yak (and a hint to the starts of 17-, 27-, and 49-Across) |
| CARATACUS | (One spelling of) the name of the leader of the resistance against Romans in Britain during Claudius's reign (9) |
| RIVER | First word of the name for a group of six species of primarily freshwater dolphins of south-central Asia, China, and South America and in the coastal waters of Brazil, Argentina, and Uruguay. (5) |
| NILGAU | One spelling of the name for the large grey Indian antelope Boselaphus tragocamelus |
| THESTOA | Location where 51D of Citium taught, and the origin of the name for his followers |
| THISNEWSPAPER | Answer to one spelling of the riddle |
| DIERI | What is one of the spellings of the name of the Australian Aboriginal people of the Cooper Creek dis |
| GWYN | One of the spellings of the surname of an orange-seller who became a leading actress at the Theatre Royal, Drury Lane and a mistress of Charles II (4) |
| MULE | Offspring of a donkey and a horse; hybrid of a canary and another finch; a numismatic "error" coin; or, a cotton-spinning machine (4) |
| SURINAM | Former or alternative spelling of the name of a Dutch-speaking South American country (7) |
| IRONGATE | One of the names for a scenic 83-mile-long gorge on the Danube forming part of the boundary between Romania and Serbia (4,4) |
| HERBBENNET | One of the names for wood avens, a plant of shady forested areas and hedgerows that can be a nuisance to gardeners due to being a self-seeder (4,6) |
| OCKENHEIM | What is one of the spellings of the Flemish composer, the first in a long line of noted Flemish comp |
| CZAR | (One spelling of) a form of the ancient Roman imperial title, used in Russia from the 16th century (4) |
| ARC | Word for a bow or a curve and one from which the name for a toxophilite, aka bowman/woman, derives (3) |
| COBRA | The name for a group of highly venomous snakes, most of which expand the neck ribs to form a hood. |
| ANNE | A queen of the Stuart dynasty whose skill in lacemaking, or lace itself, is said to have inspired one of the names for cow-parsley (4) |
| LEWISWITHHARRIS | What is one of the names for the island in the Outer Hebrides, also called the Long Island, famous f |