It's made to last (4)
I believe the answer is:
shoe
'to last' is the definition.
(thesaurus)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for shoe that I've seen before include "Eg, brogue" , "Sandal, for instance" , "Plate nailed to underside of horse's hoof" , "something afoot" , "eg Trainer" .)