Manager taking the lead from corporate restructure (8)
I believe the answer is:
operator
'manager' is the definition.
(thesaurus)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for operator that I've seen before include "Person who runs a machine or a business" , "Speculator" , "Controller of machinery" , "Manipulative type of person" , "Director or controlller of machinery" .)