Glenda Jackson finally restored country (7)
I believe the answer is:
england
'country' is the definition.
(I know that England is a country)
'glenda jackson finally restored' is the wordplay.
'finally' suggests the final letters.
'restored' indicates an anagram.
The final letter of 'jackson' is 'n'.
'glenda'+'n'='glendan'
'glendan' with letters rearranged gives 'ENGLAND'.
(Other definitions for england that I've seen before include "Part of the UK" , "' - - expects' (Nelson)" , "Largest country in the UK" , "team in white?" , "Blighty" .)