Related Clues:
- Set upright
- Without pause
- How a box may be set
- Vertically
- For hours __ (interminably)
- Without breaking
- Standing up
- With no letup
- How the hair of frightened comic book characters stands
- How crates may be set
- Upturned, as a crate
- For days __ (unceasingly)
- Without interuption
- Make one's hair stand ___
- Standing upright