Possible Clues:

• Vegetable producer
• Vegetable giving brother terrible colic
• Badger king's lacking coil-shaped vegetable
• Vegetable, relative having caught cold, cut one
• Floret veggie
• Brother officer has high rank in army and is one of those associated with the Greens
• One of the Greens who took agent to the cinema?
• Vegetable producer in pictures?
• Dark green vegetable
• Croc wallowing in black oil that's obscured greens