Knackered as most bangers, I'm told (5)
I believe the answer is:
tired
'knackered' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for tired that I've seen before include "Weary, fatigued" , "Sleepy" , "Beat" , "Physically or mental weary" , "Weary or fed up" .)