Addresses power charges (7)
I believe the answer is:
accosts
'addresses' is the definition.
('accost' can be a synonym of 'address')
'power charges' is the wordplay.
'power' becomes 'AC' (AC is an example).
'charges' becomes 'costs' (I've seen this before).
'ac'+'costs'='ACCOSTS'
(Other definitions for accosts that I've seen before include "Grabs" , "Approaches boldly, solicits" , "As a solicitor does" .)