One may be charged - with assault (7)
I believe the answer is:
battery
I believe this is a double definition.
'one may be charged' is the first definition.
(I've seen this before)
'assault' is the second definition.
(synonyms)
'with' acts as a link.
(Other definitions for battery that I've seen before include "Accumulator" , "Source of stored energy" , "Device that converts chemical energy into electrical energy" , "Personal attack" , "it makes poultry grow faster" .)