Possible Clues:

• Gullible person (colloq.)
• Fool given help, we hear
• Shoot from plant roots or informal victim
• Shoot coming from roots, or slangy victim
• Shoot; gullible person
• Plant shoot; gullible type
• One easily fooled; base-of-stem shoot
• Shoot from underground stem, or slangy victim
• Underground shoot from shrub, or slang victim
• Slangy victim or plant shoot