Agree, in Vienna, that Austrian leader left dead tired (5)
I believe the answer is:
jaded
'tired' is the definition.
(similar in meaning)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for jaded that I've seen before include "Fatigued and bored" , "No longer freshly keen" , "Spent" , "Weary from excess" , "Lacking enthusiasm" .)