Possible Clues:

• Sour fruit
• Wild fruit
• Small sour fruit
• Criticise pupil for making jelly
• A roll at the heart of modified carpel formed small fruit
• Sign spotted once, Pennies off sour fruit
• Could the nipper make the fruit wild?
• Find fault with fruit and get a different one
• Find fault with one fruit, so get another
• A small sour fruit - will it keep the doctor away?