Restore control to the country (9)
I believe the answer is:
reinstate
'restore' is the definition.
(I know that reinstate is a more specific form of the action restore)
'control to the country' is the wordplay.
'control' becomes 'rein' (reining is a kind of controlling).
'to the country' becomes 'state' ('state' can be a synonym of 'country').
'rein'+'state'='REINSTATE'
(Other definitions for reinstate that I've seen before include "Restore to former post" , "Give back" , "Put back in position" , "Bring back" , "Restore to previous position" .)