Related Clues:

• 'Synecdoche' or 'onomatopoeic,' e.g. (Dental)
• 1999 film starring Rose McGowan, Rebecca Gayheart, and Julie Benz
• Heavy-duty rock-crushing machine
• American gobstopper — word that's hard to pronounce
• Gobstopper ... or a punny description of 17-, 35- or 41-Across