See it's cod I cooked and see to be battered (7)
I believe the answer is:
diocese
'see' is the definition.
(thesaurus)
'cod i cooked and see to be battered' is the wordplay.
'cooked' is an anagram indicator.
'and' means one lot of letters go next to another.
'to be battered' indicates anagramming the letters.
'cod'+'i'='codi'
'codi' is an anagram of 'dioc'.
'see' anagrammed gives 'ese'.
'dioc'+'ese'='DIOCESE'
'it's' acts as a link.
(Other definitions for diocese that I've seen before include "Bishop's see" , "Ecclesiastical see" , "District under a bishop's jurisdiction" , "I see cod (anag)" , "Bishopric" .)