Immediately in charge of electricity (6)
I believe the answer is:
'electricity' is the definition.
(static electricity is a kind of electricity)
'immediately in charge' is the wordplay.
'immediately' becomes 'stat' (stat can informally mean at once).
'in charge' becomes 'ic' (abbreviation for 'in charge').
'of' is the link.
(Other definitions for static that I've seen before include "Lacking change" , "showing no signs of going anywhere" , "it can shock and > ruin the reception" , "That's shocking!" , "TV or radio interference" .)