Clue: Desperate to get out of ritzy cars (4,5)
Answer: STIR CRAZY
Explanation: Desperate to get out of ritzy cars (4,5)
*(ritzy cars) 
There is no satisfactory anagram indicator here. It can't be "out" or "out of" as the "out" is a necessary part of the definition, so would be doing double dutry, and I don't think "of" is enough in itself to indicate an anagram.