The English say, "Property" (6)
I believe the answer is:
estate
'property' is the definition.
(I know that property can be written as estate)
'the english say' is the wordplay.
'the english' becomes 'e' (abbreviation).
'say' becomes 'state' (synonyms).
'e'+'state'='ESTATE'
(Other definitions for estate that I've seen before include "One car" , "Family land" , "My wealth" , "Houses - car" , "Property and possessions of the deceased" .)