Possible Clues:

• Cactus with an edible fruit
• Fruit offered by waspish couple on the radio
• Fruit-bearing cactus
• Report of couple likely to take offence producing fruit?
• Kind of 11 producing fruits
• Cactus fruit
• Irritable cactus?
• Type of cactus
• Irritable couple talked of cactus
• Waspish couple reportedly got fruit