Do they prove shoemakers have endurance? (5)
I believe the answer is:
lasts
'do they' is the definition.
The definition suggests a plural noun which matches the answer.
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for lasts that I've seen before include "Goes on" , "Endures" , "Keeps on" , "carries on" , "Holds out" .)