Stop Charlie finding contentment (5)
I believe the answer is:
cease
'stop' is the definition.
(I know that stop can be written as cease)
'charlie finding contentment' is the wordplay.
'charlie' becomes 'c' (phonetic alphabet: alpha, bravo, charlie etc.).
'finding' is a charade indicator (letters next to each other).
'contentment' becomes 'ease' (I've seen this in another clue).
'c'+'ease'='CEASE'
(Other definitions for cease that I've seen before include "Desist" , "Come to an end" , "Political group" , "Stop, terminate" , "Culminate" .)