Related Clues:

• Herbicide's target
• Marilyn Monroe facial feature
• Underground type
• It's often rooted out
• Nut sedge, e.g.
• Unwelcome rooter
• Security concern
• Suburban pest
• Undercover operator
• Subterranean pest
• Cig
• It may be rooted out
• Spymaster's worry
• Blemish
• Garden invader