Related Clues:

• Sew up
• Vanilla ___
• Rocks
• Winter driving hazard
• Diamonds, to hoods
• See 2-Down
• Yegg's haul
• Polar formation
• Break the ___
• Crystal
• Bar need
• A pluviometer measures it
• With 10-Across, treatment for a swelling
• Fall in April?
• Philatelist's collection