Reprobate's implement (4)
I believe the answer is:
rake
I believe this is a double definition.
'reprobate's' is the first definition.
(thesaurus)
'implement' is the second definition.
(I know that rake is a type of implement)
(Other definitions for rake that I've seen before include "He made progress" , "Scrape" , "Dissolute person" , "One with teeth" , "Garden tool for a dissolute fellow" .)