Maiden possibly facing accusation as cheat (10)
I believe the answer is:
overcharge
'cheat' is the definition.
(overcharging is a kind of cheating)
'maiden possibly facing accusation' is the wordplay.
'maiden possibly' becomes 'over' (maiden is a kind of over).
'facing' is a charade indicator (letters next to each other).
'accusation' becomes 'charge' (I've seen this before**).
'over'+'charge'='OVERCHARGE'
'as' is the link.
(Other definitions for overcharge that I've seen before include "Ask too much" , "Demand too high a price" , "Ask too high a price" , "rook" , "leave phone plugged in unduly long!" .)