| River running through the Grand Canyon |
| Not perfectly balanced |
| Running contest |
| Running buddy's question? |
| Get running again, as a jalopy |
| 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 |
| Abbreviated vacation goal, letter-perfectly |
| Abbr. useful when running out of room |
| Perfectly repaired |
| Long-running TV science show that hints at the other long entries |
| ___ a turn (cooked perfectly) |
| American ___" (long-running singing show) |
| Running ___ (joke that continues over time) |
| Adlai's running mate in 1956 |
| Adlai's 1956 running mate |
| Keep the engine running |
| Adlai's running mate: 1956 |
| One running a hot business? |
| Perfectly safe, as an investment |
| Land perfectly, as a gymnastics move |
| Accomplishes perfectly, as a dismount |
| Adlai's '56 running mate |
| Front-running |
| Achieve perfectly |
| Adlai's1956 running mate Kefauver |
| Behave perfectly |
| Broadway's longest-running show |
| Neutral color running through the four longest puzzle answers |