Related Clues:

• One who'll tend to guard, for example, a plant?
• Caring type, 'Contrary Mary', with name for being a gardener
• Horticulturist, fellow whose charges are small?
• Runners may get developed by him
• One who sells plants
• Younger visiting celebrities manage to elevate one's growing business
• Gardener in charge of children's room?
• Gardener
• Runners may get sent out -- perhaps I've grown them from seed
• Plant grower
• Potter stars rush around, keeping track
• One who grows plants
• Worker rearing plants
• Breeder runs many dodgy houses I hesitate to say
• Green-fingered fellow cultivated runners, keeping May free