Ninja elected by Charlie and Wally (8)
I believe the answer is:
assassin
'ninja' is the definition.
I can't tell whether this defines the answer.
'elected by charlie and wally' is the wordplay.
'elected' becomes 'in' (in government).
'by' is a charade indicator (letters next to each other).
'charlie' becomes 'ass' (both can mean a foolish person).
'and' is a charade indicator (letters next to each other).
'wally' becomes 'ass' (both can mean a stupid person).
'in' put after 'ass' is 'assin'.
'assin' put after 'ass' is 'ASSASSIN'.
Can you help me to learn more?
(Other definitions for assassin that I've seen before include "A killer of political or religious leader" , "Hired killer" , "Killer of prominent person" , "Hired murderer" , "Carlos the Jackal was one" .)