| REVERSEENGINEER | Take apart to understand the design of |
| GALILEO | Forename of the discoverer of the isochronism of a pendulum who improved upon the design of the refracting telescope to observe the four largest moons of Jupiter (7) |
| OVERHAUL | Take apart to examine and repair if necessary (8) |
| PUGIN | Augustus _, 19th-century English architect who contributed substantially to the design of the Palace of Westminster (5) |
| HENRY | Surname of the Swiss designer credited with the design of Peugeot, Ballot, and Sunbeam early twin-cam racing engines (5) |
| TEMPLE | The design of Surrey House, Norwich, was based upon the ... of Solomon (6) |
| AXOLOTL | Salamander planned to be added to the design of Mexico's 50-peso note by 2022 |
| CHAINMAIL | Known to the Romans as lorica hamata, mesh-like armour worn by medieval knights and soldiers derived from the designs of the Celts (5,4) |
| ARCHITECTURAL | Pertaining to the design of buildings (13) |
| TREADMILL | Start treatment to understand the beginning of migraine suffering from the daily grind (9) |
| MINDYOURPSANDQS | "Behave!," or a hint to the letter changes needed to understand the starred clues |
| ILLITERATE | Wrong speed - holding it to end of race, unable to understand the instructions? (10) |
| SHUFFLE | What you may need to do to understand the four sets of circled letters |
| DEEP | It is difficult to understand the sea, according to the poet (4) |
| EMPATHY | Ability to understand the feelings of others |
| KNOWTHESCORE | Instruction to musicians to understand the facts (4,3,5) |
| ABITTHICK | Slow to understand the breadth of computer memory? (1,3,5) |
| UNDERRATE | Fail to understand the importance of (9) |
| SEEM | Appear to understand the beginning of mystery (4) |
| COTTONSON | Begins to understand, the boy is following the yarn (7,2) |
