Rubbish bin initially put in place for mechanic (7)
I believe the answer is:
garbage
'rubbish' is the definition.
(both can mean refuse or trash)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for garbage that I've seen before include "Nonsense!" , "'Refuse, rubbish (7)'" , "Waste, refuse" , "Rubbish, waste" , "Refuse - tripe" .)