Rake money in - in the usual way (7)
I believe the answer is:
routine
'usual way' is the definition.
'routine' can be an answer for 'way' (thesaurus). I am unsure of the 'usual' bit.
'rake money in' is the wordplay.
'rake' becomes 'roue' (both can mean an immoral man).
'money' becomes 'tin' (old-fashioned slang term for money).
'in' is an insertion indicator.
'roue' placed around 'tin' is 'ROUTINE'.
'in the' acts as a link.
Can you help me to learn more?
(Other definitions for routine that I've seen before include "Mundane" , "Set sequence of dance steps" , "Everyday procedure" , "number" , "Ordinary" .)