Related Clues:

• Scent maker
• Greenhouse growth
• Oxygen producer
• Botanist's study
• Flower or weed
• Covert agent
• Bouquet component
• Carnival shill, e.g.
• Audience member who's really a performer
• Many a housewarming gift
• Audience shill
• Mole, for example
• Rose or carnation
• Greenhouse buy
• Herb or tree