Rent pasture and vacant storehouse (5)
I believe the answer is:
lease
'rent' is the definition.
(thesaurus)
'pasture and vacant storehouse' is the wordplay.
'pasture' becomes 'lea' ('lea' can be a synonym of 'pasture').
'and' says to put letters next to each other.
'vacant' suggests removing the centre.
'storehouse' becomes 'store' ('store' can be a synonym of 'storehouse').
'store' with its middle taken out is 'se'.
'lea'+'se'='LEASE'
(Other definitions for lease that I've seen before include "Tenancy agreement" , "Contract to rent" , "Contract allowing use of a property" , "Property rental agreement" , "Let; rent" .)