| ETHANCOEN | Filmmaker who alternates top billing with his brother |
| BOXANDCOX | Two people who alternate in a place or job, but never meet (3,3,3) |
| ATOMANT | Character who shared top billing with Secret Squirrel in the 1960s |
| COSTARICA | One sharing top billing with one accountant in the country (3,6) |
| STARSHIP | Enterprise, for example, has top billing with it (8) |
| COSTARD | Shakespearean jester, one sharing top billing with duke |
| COSTAR | He shares top billing with various actors (2-4) |
| PEA | It gets equal billing with a princess |
| COSTARRED | Had equal billing with another star |
| WILBURWRIGHT | American aviator who, with his brother Orville, is credited with inventing and building the first successful aeroplane (6,6) |
| HEIGHT | Cheering that alternates from the top (6) |
| HIIT | Workout syst, that alternates vigorous exercise with quick recovery periods |
| HOBNOBS | Alternates drinks with biscuits (7) |
| NINA | La -, climatic phenomenon which alternates with El Nino (4) |
| ROD | Arnold alternates with another man's name (3) |
| CALEB | Doctor who works with his brother Ethan in Casualty (5,6) |
| IRA | Broadway lyricist Gershwin who collaborated with his brother George |
| ETHAN | Coen who directs with his brother Joel |
| JOHNWESLEY | Anglican cleric who, with his brother, founded the Methodist Movement (4,6) |
| NORRISMCWHIRTER | Who, with his brother Ross, compiled the Guinness Book of Records? (6,9) |
