Possible Clues:

• Alligator type is Wicklow town local cheat
• Green Party following a vocation? Not half!
• Green Party following American, almost articulate
• A very old poster in firm's green
• Guaca-mole base
• Fruit in a California roll
• Green toast topping
• Are initially not entirely vocal over party fruit
• Fruit used in California rolls
• A very old blighter, round for fruit