| Mason's trough |
| Action needed to spot the four fliers in the theme answers |
| A Parkinson's treatment |
| Kate Hudson's mom |
| Activity suggested by this puzzle's theme entries |
| Fed-up person's cry |
| Antiquated ballpark? |
| Partially obscured (and a hint to this puzzle's theme) |
| Mason's partner in investments |
| Adlai Stevenson's Dalmatian. |
| Marge Simpson's father-in-law |
| Perry Mason's concern |
| Abbreviation before a person's name on a business envelope |
| Lone Ranger's theme composer |
| A person's principal home |
| Bodybuilder's theme song? |
| Perry Mason's Gardner |
| L- -- (Parkinson's treatment) |
| Asleep ... or a hint to this puzzle's theme |
| Abe Simpson's daughter-in-law |
| Perry Mason's right-hand gal |
| African American mathemetician who purportedly surveyed the District of Columbia |
| Salesperson's goal |
| Alternative words used as alternatives for each other in this puzzle's theme answers |
| Contract extras, and read differently, a hint to this puzzle's theme |
| Jason's mythical vessel |
| Mason's Gardner? |
| Alternative theme song to "Cosmos"? (the Beastie Boys) |
| Jason's mythological ship |
| Behave!" ... and a hint to this puzzle's theme |