Related Clues:

• Hair-salon application
• Stylist's goop
• Stage light covering
• Mousse cousin
• Toothpaste, often
• Pen filler, perhaps
• Colloid
• Firm up, in a way
• Glue is one
• Hair-salon item
• Breast enlargement material
• After-haircut styler
• Hairstylist's goo
• Lighting director's choice
• 12-Across, e.g.