| Indian or neon | 14 |
| Formally agree | 14 |
| Finish off a check | 18 |
| Finalize a contract | 19 |
| Exit indicator | 14 |
| Endorse, in a way | 17 |
| Emulate Hancock | 15 |
| Emulate Charles Carroll | 23 |
| Emulate Button Gwinnett | 23 |
| Doyle's "The ___ of the Four" | 43 |
| Crop circle, some believe | 25 |
| Converse with the deaf | 22 |
| Converse silently | 17 |
| Contract for | 12 |
| Confirm in a way | 16 |
| Communicate with hand gestures | 30 |
| Communicate digitally? | 22 |
| Coach's gesturing | 21 |
| Coach's cue, e.g. | 21 |
| Coach's communication | 25 |
| Coach-to-batter gesture | 23 |
| Catcher's gesture | 21 |
| Catcher's flash | 19 |
| Catcher-pitcher ploy | 20 |
| Billboard, say | 14 |
| Astrological datum | 18 |
| Aries or Scorpio | 16 |
| Apply your John Hancock | 23 |
| An auction bidder might give a high one | 39 |
| Agree to a deal | 15 |
| Agree in writing | 16 |
| Affix your John Henry | 21 |
| Affix an autograph | 18 |
| Affix a signature | 17 |
| Accept a contract | 17 |
| A coach might flash one | 23 |
| 20-A, for one | 13 |
| "The ___ of the Four" | 31 |
| "The ___ of Four": Doyle | 34 |
| "Stop" or "Falling Rocks" | 45 |
| "No Loitering," e.g. | 30 |
| "Keep off the grass," e.g. | 36 |
| ''YIELD RIGHT OF WAY,'' for one | 47 |
| ''_____ here'' | 30 |
| ____ language | 13 |
| Street corner feature | 21 |
| Placards and posters | 20 |
| Much advertising | 16 |
| Motorist's reading | 22 |
| Billboards, posters and placards | 32 |
| Use a blinker | 13 |
| Be a polite driver, in a way | 28 |
| A wink or a nod, perhaps | 24 |
| It hangs out on a street near you | 33 |
| Indicate silently | 17 |
| Flag or flare | 13 |
| Wink, e.g. | 10 |
| Wave, e.g. | 10 |
| Wave or wink | 12 |
| Use semaphore | 13 |
| Use a heliograph | 16 |
| Turn ___ (car setting) | 22 |
| Taps, e.g. | 10 |
| Prepare to turn | 15 |
| Prepare to change lanes | 23 |
| Pair of lamps, maybe | 20 |
| Nod, at auctions | 16 |
| Nod or wink | 11 |
| Light at a corner | 17 |
| It's often indicated by bars | 32 |
| High-low play in bridge | 23 |
| High-low play at bridge | 23 |
| Flare, e.g. | 11 |
| Flag, maybe | 11 |
| Flag or flare, perhaps | 22 |
| Cell user's need | 20 |
| Cell phone requirement | 22 |
| Bridge high-low play | 20 |
| Army's ___ Corps | 20 |
| A wink or a nod, say | 20 |
| A wink or a nod, maybe | 22 |
| A wink or a nod, e.g. | 21 |
| _____ Hill, Marconi test site | 29 |
| Railway tower, in England | 25 |
| Military communications branch | 30 |
| Get in on the ground floor, perhaps? | 36 |
| Decide to rent | 14 |
| Agree to rent | 13 |
| Gave the high sign, say | 23 |
| Gave the high sign | 18 |
| One giving a cue | 16 |
| Cohort for Paul Revere | 22 |
| Semaphore pennants | 18 |
| Flagged down: Var. | 18 |
| Communicated nonverbally | 24 |
| Notably or unmistakenly | 23 |
| Military communications expert | 30 |
| Semaphore pros | 14 |
| Hue stronger than scarlet | 25 |
| They may get mixed in communication | 35 |