Church in Calais I renovated with bishop (8)
I believe the answer is:
basilica
'church' is the definition.
(type of large church)
'calais i renovated with bishop' is the wordplay.
'renovated with' is an anagram indicator.
'bishop' becomes 'B' (abbreviation for bishop in chess).
'calais'+'i'='calaisi'
'calaisi' anagrammed with 'b' gives 'BASILICA'.
'in' acts as a link.
(Other definitions for basilica that I've seen before include "Bails CIA out of the large church" , "Roman law court; church" , "Magnificent church" , "A large Christian church with two rows of columns (8)" , "Large (Roman Catholic) church" .)