Confront with a small account charge (6)
I believe the answer is:
accost
'confront' is the definition.
(I've seen this before)
'with a small account charge' is the wordplay.
'with' is a charade indicator (letters next to each other).
'a small account' becomes 'ac' (abbreviation; 'small' indicates a short form).
'charge' becomes 'cost' (I've seen this in another clue).
'ac' put next to 'cost' is 'ACCOST'.
(Other definitions for accost that I've seen before include "approach with menaces" , "Approach boldly and speak to" , "Waylay" , "Make bold approach to" , "Meet and greet" .)