One taking charge of CIA, crudely infiltrating abductor (9)
I believe the answer is:
capacitor
'one taking charge' is the definition.
'cia crudely infiltrating abductor' is the wordplay.
'crudely' indicates anagramming the letters.
'infiltrating' indicates putting letters inside.
'abductor' becomes 'captor'.
'cia' with letters rearranged gives 'aci'.
'aci' placed inside 'captor' is 'CAPACITOR'.
'of' is the link.
(Other definitions for capacitor that I've seen before include "Charge-storing device" , "Charge keeper" , "Electric charge storer" , "store of electricity" .)