Broken down, worn out (8)
I believe the answer is:
decrepit
I believe this is a double definition.
'broken down' is the first definition.
(I've seen this in another clue)
'worn out' is the second definition.
(I've seen this before)
(Other definitions for decrepit that I've seen before include "run down" , "Depicter may be weakened by old age" , "Worn and broken down by use" , "Worn out by age or use" , "In the last stages of decay" .)