He won't do much to earn his reputation (5)
I believe the answer is:
idler
This clue could be a double definition.
'he won't do much' is the first definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'earn his reputation' is the second definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'to' is the link.
Can you help me to learn more?
(Other definitions for idler that I've seen before include "Bum" , "Lazy person" , "Bummer" , "Johnson's work" , "Lazy type" .)