Possible Clues:

• Vegetable - expedition does without it
• 24 down tears, with footballer missing header between the sticks
• Edible green stalk
• Snack in nearly every episode of 'Wonder Pets'
• Bloody Mary stalk
• Watery green vegetable
• Vegetable in sticks
• Garden plant? There's quickness getting rid of it
• Vegetable — what snail can't manage without it?
• Some elephant in call for salad vegetable