Related Clues:

• What matzo lacks
• Vintner's need
• Fungus-alga union
• You'll get a rise out of this
• Dough ingredient
• Reindeer moss, e.g.
• Start to smell, in a way
• You often get a rise out of it
• Bakery leavener
• Gelatin shaper, in London
• A raising agent
• Tiny plants found on rocks, tree-trunks etc
• Crusty, tufty growth on trees and stones
• Fleshy fungus
• White coating on things exposed to damp