Possible Clues:

• An official tour at public expense
• Fun business trip
• Excursion at public expense - type of dessert
• Official trip
• Dish of flavoured curds
• Outing at public expense? Abandon it in speech
• Useless official tour at public expense
• Extravagant trip to see rubbish film
• Government official's extravagant trip at public expense - curds of milk pudding
• A dessert and a trip taken at public expense