County plots (4)
I believe the answer is:
beds
This clue is a double definition.
'county' is the first definition.
(abbreviation for Bedfordshire)
'plots' is the second definition.
(bed is a kind of plot)
(Other definitions for beds that I've seen before include "to which people may retire" , "Places to sow or to sleep" , "wards have them" , "Garden plots -- English country (abbr)" , "Small English county" .)