Renewed energy around garden (4)
I believe the answer is:
eden
'garden' is the definition.
(Garden of Eden in the Bible)
'renewed energy around' is the wordplay.
'around' says the answer is hidden in the clue.
'EDEN' is hidden within 'renewed energy'.
(Other definitions for eden that I've seen before include "The near-perfect garden" , "(Biblical) paradise" , "Tory Prime Minister, 1955-57" , "heavenly spot" , "Paradise - ex-PM" .)