| BINARYDIGIT | Ban rigidity about a one or a zero (6,5) |
| SUPER | A-one, or one living in 1-A, perhaps |
| SUPERCOUPLE | Jay-Z and Beyonce, for one ... or a hint to what can precede both words of each starred clue's answer |
| PRIMENUMBER | 8,675,309, for one...or a hint to each asterisked clue's answer |
| RIGORMORTIS | Rigidity of a dead body (11) |
| TRAMMEL | A beam compass; a type of fishing net; or, an adjustable hook for holding one or a series of cooking pots or kettles over an open fire (7) |
| TETEATETE | Monotonous notes about a one-on-one interview (4-1-4) |
| ATTIC | In architecture, a small order placed above a taller one; or, a garret, loft, mansard or other sky parlour (5) |
| WILDCARDPLAY | Theatrical work about a one-eyed jack? |
| NONPAREIL | Uplifting story printed around 2 April about a one-off |
| INSULATE | Be rude about a One Direction cushion (8) |
| TALE | Story told about a one to wag? (4) |
| CLEEK | Another name for a 1- or 2-iron, once |
| NEARPAR | Having a 1 or 2 handicap |
| APPLET | A very small computer application, especially a utility program performing one or a few simple funct |
| COZY | Comfy and warm, like a lovingly swaddled little one or a log cabin with a roaring fire |
| FOUNTAIN | Word first for a natural spring of water, later for an artificial one; or, a reservoir in a lamp/pen for oil/ink (8) |
| TULIP | Put up about A£1 for a flower (5) |
| VALISE | Possibly save about A£1 for a bag (6) |
| BRACE | A dentist may fit one-or a pair (5) |
