| FLESHY | Having a firm pulp |
| PEPO | Fruit of the type produced by plants of the gourd family (melons, cucumbers etc.), having a firm rind, many seeds and soft watery pulp (4) |
| SUBSTANTIVE | Having a firm basis in reality |
| PURCHASE | In contract, check having a firm grasp |
| CRISPY | Having a firm, dry, and brittle texture (6) |
| COBRA | A firm supporter but a creeper |
| PEACOCK | A firm peck outside from a bird |
| CORD | A firm way with a strong line |
| FROMAGEFRAIS | For ages, a firm manufactured a dairy product |
| GRIP | A firm hold on a travelling bag (4) |
| SEACOW | Join a firm taken in by a supposed mermaid? (3,3) |
| PARTISAN | A firm adherent to a party, faction, person or cause (8) |
| TANNOY | Colloquial term for a public address system taken from the name of a firm set up by Guy Fountain in 1926 (6) |
| CHEDDARCHEESE | A firm yellowy-white cheese with a mild to extra sharp taste (7,6) |
| AGRIPPA | Roman general gets a firm hold, a year later |
| ZEISS | Carl, whose optical instrument workshop, opened in Jena in 1846, developed into a firm with a high reputation worldwide (5) |
| LOGO | A small design that serves as the sign of a firm or organization |
| WART | A firm, raised area of the skin caused by a virus (4) |
| GRAB | Take a firm grasp of a bit of luggage (4) |
| COO | A cry that has a firm ring to it (3) |