| River running through the Grand Canyon |
| Running contest |
| Running buddy's question? |
| Get running again, as a jalopy |
| 1968 Sly and the Family Stone song calling for movement |
| Joint sometimes twisted when running |
| Cartoony yell if your butt's on fire and you're running in circles |
| IM shorthand while running to the bathroom |
| Abbr. useful when running out of room |
| Long-running TV science show that hints at the other long entries |
| Running ___ (joke that continues over time) |
| A Dandy in ___," 1968 film |
| Adlai's running mate in 1956 |
| American ___" (long-running singing show) |
| Adlai's 1956 running mate |
| Adlai's running mate: 1956 |
| Planetary rulers in a 1968 movie |
| Keep the engine running |
| One running a hot business? |
| American Independent Party candidate for President (1968): 2 wds. |
| Adlai's '56 running mate |
| Broadway's longest-running show |
| Front-running |
| Adlai's1956 running mate Kefauver |
| Atlanta slugger: 1968-75 |
| Al Gore's 2000 running mate, to an October baby? |
| Neutral color running through the four longest puzzle answers |
| Lew Wallace's hero. |
| Wallace's transmitting device? |
| Possible "running with the bulls" result |