Clue: …It's turning up in Cairo that's wretched, getting past without auxiliaries? (8)
Answer: AORISTIC
Explanation: Definition: past without auxiliaries?
**<=ITS** [*turning up*] *in* ***(cairo)** [anag:*that's wrecked*] 
*In grammar, aoristic refers to a the aorist tense, a form of the past perfect.