Related Clues:

• Shepherd's purse, e.g.
• Show favoritism
• Underground stem
• ___ canal
• Crabgrass, e.g.
• Marijuana, slangily
• Spray target, perhaps
• Etymologist's concern
• Gardener's nemesis
• Extirpate, with 'out'
• Lawn invader
• Canine support
• Fans do it
• Part of a tooth
• It engages in underground activity