Related Clues:
- Freedom from doubt or impurity
- Lucidness
- Playground chute
- Pool adjunct
- Trombone piece
- Ride a sled downhill
- Base runner's option
- Playground equipment with sloping surface
- Synthetic filament
- Third base coach's urging, maybe
- The French king filling Paris, perhaps, with brightness
- Get under the tag, hopefully
- Slither
- PowerPoint unit
- Wall Street decline, or something that might be associated with 18-, 26-, 44- or 57-Across