Wanderer takes no notice, raking in million (5)
I believe the answer is:
nomad
'wanderer' is the definition.
(I know that Nomad is a type of wanderer)
'no notice raking in million' is the wordplay.
'notice' becomes 'ad' (both can mean an advertisement).
'raking in' means one lot of letters goes inside another.
'million' becomes 'm' (abbreviation).
'no'+'ad'='noad'
'noad' enclosing 'm' is 'NOMAD'.
'takes' acts as a link.
(Other definitions for nomad that I've seen before include "Unsettled type" , "Person of no fixed abode" , "One travels from place to place with no permanent home" , "Roving person" , "Roamer" .)