Related Clues:

• Fluctuating
• Inverted
• Set upright
• Without pause
• How a box may be set
• 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
• Changeable
• For days __ (unceasingly)
• Without interuption