Rascal on every charge (7)
I believe the answer is:
impeach
'charge' is the definition.
(synonyms)
'rascal on every' is the wordplay.
'rascal' becomes 'imp' (synonyms).
'on' is a charade indicator (letters next to each other) (in a down clue, letters appear on others).
'every' becomes 'each' (synonyms).
'imp'+'each'='IMPEACH'
(Other definitions for impeach that I've seen before include "In America, charge with misconduct - say President" , "Arraign, charge" , "Arraign - revile" , "Criticise" , "call into question" .)