Bond finally infiltrating dictator's organisation (5)
I believe the answer is:
admin
'organisation' is the definition.
(short for administration)
'bond finally infiltrating dictator's' is the wordplay.
'finally' says to take the final letters.
'infiltrating' indicates putting letters inside.
'dictator' becomes 'amin' (Idi Amin, Ugandan dictator).
The last letter of 'bond' is 'd'.
'd' inserted within 'amin' is 'ADMIN'.
(Other definitions for admin that I've seen before include "Process of running an organisation (abbr)" , "Form-filling (abbr.)" , "Management function" , "Business organisation" , "Paperwork (abbr)" .)