| BLAISE | With 31-Across French scientist whose last name has become the term for a unit of pressure |
| ISAACNEWTON | English scientist whose last name has become the term for a unit of force: 2 wds. |
| NIKOLATESLA | Serbian-American scientist whose last name has become the term for a unit of magnetic induction: 2 wds. |
| COMPANY | A word for a unit of Guides, the crew of a ship, a group of actors or a body of soldiers (7) |
| ACRE | From the Old English meaning "open field", a word for a unit of land area that is etymologically related to the name of the fruit of the oak (4) |
| JOHNHANCOCK | Signatory of the US Declaration of Independence whose name has become a synonym for a signature (4,7 |
| STANLEY | US tool-making company whose name has become a generic term for a type of knife (7) |
| YUMP | A rally driver's airborne manoeuvre over a crest, often with an element of danger; or, one of the terms for a young upwardly mobile professional, with similarities to a Sloane Ranger (4) |
| MEME | Word for a unit of cultural inheritance originally used by Richard Dawkins to de-emphasise the gene as the only unit of natural selection (4) |
| RONTGEN | One of the spellings for a unit of measurement for ionising radiation (7) |
| FOOT | One - in the Grave; sitcom with a character whose name has become synonymous with being grumpy (4) |
| MARTINET | French general in the reign of Louis XIV whose name has become synonymous with strict military discipline (8) |
| GIGAFLOP | Term, evocative of a billion failures, for a unit of computing rate equal to one thousand million floating-point operations per second (8) |
| ATMOSPHERE | A unit of pressure equivalent to the pressure that will support a column of mercury 760mm high at 0 degrees Celsius at sea level |
| ISOBAR | A line on a weather map is first one with a unit of pressure (6) |
| GRAMME | Original spelling for a unit defined as the weight of a cubic centimetre of water |
| PASTEUR | French scientist whose name was given to the process of killing microorganisms in milk, Louis ... |
| SOPRANINO | The term for a musical instrument such as a recorder or saxophone that has the highest pitch of all those in its family (9) |
| CLINK | The ___ was a London jail whose name has become slang for prison in general. (6) |
| CROESUS | Ancient king of Lydia whose name has become a byword for great wealth (7) |
