Catholic owned land (4)
I believe the answer is:
chad
'land' is the definition.
(Chad is an example)
'catholic owned' is the wordplay.
'catholic' becomes 'c' (abbreviation as in RC for Roman Catholic).
'owned' becomes 'had' ('have' can be a synonym of 'own').
'c'+'had'='CHAD'
(Other definitions for chad that I've seen before include "Feature of controversial election once" , "Bit of paper" , "West African country" , "Paper punch waste; African country" , "Piece of (almost?) punched-out paper" .)