| A founder of aerodynamics |
| Underground burial chamber |
| You might draw them when answering questions |
| Tee forerunner |
| Rainbow shape |
| Dadaism co-founder Jean |
| Trundled |
| Home run, in baseball slang |
| Singer with medical training? |
| Brain-scan letters |
| Bring under control |
| Mutually misunderstanding |
| Undergarment |
| A mouse may run on one |
| Restraining influence |
| River that runs near the Leaning Tower of Pisa |
| Down-under soldier |
| Action needed to spot the four fliers in the theme answers |
| Runner Sebastian with two Olympic gold medals |
| Cereal grain |
| Head of a train? |
| A WWI song urged us to keep them burning |
| Activity suggested by this puzzle's theme entries |
| Crunchy vegetable |
| Vancouver founders of hardcore punk |
| Polenta grains |
| River running through the Grand Canyon |
| Actress Ambrose of "Six Feet Under |
| Partially obscured (and a hint to this puzzle's theme) |
| Acadia and Terrain |