Require space for church (7)
I believe the answer is:
enforce
'require' is the definition.
(thesaurus)
'space for church' is the wordplay.
'space' becomes 'en'.
'church' becomes 'ce' (abbreviation for Church of England).
'en'+'for'+'ce'='ENFORCE'
(Other definitions for enforce that I've seen before include "Insist on" , "Compel compliance or obedience" , "Give effect to" , "exercise" , "Implement - compel" .)