Liberated a French church Diane renovated (9)
I believe the answer is:
unchained
'liberated' is the definition.
(unchaining is a kind of liberating)
'a french church diane renovated' is the wordplay.
'a french' becomes 'un' ('a' in French).
'church' becomes 'ch' (common abbreviation).
'renovated' indicates anagramming the letters.
'diane' with letters rearranged gives 'ained'.
'un'+'ch'+'ained'='UNCHAINED'
(Other definitions for unchained that I've seen before include "Freed from shackles" , "out of bonds?" , "- - Melody (1955 hit)" , "like the melody in popular song" , "Not secured" .)