Like flat land in Constable country (5)
I believe the answer is:
table
'like flat land' is the definition.
The definition and answer can be both groups as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'in constable country' is the wordplay.
'in' indicates a hidden word.
'TABLE' is hidden within 'constable country'.
Can you help me to learn more?
(Other definitions for table that I've seen before include "Food stand or numbers array" , "Horizontal furniture" , "Article of furniture - list of facts and figures" , "Record" , "Item of furniture; figures presented in columns" .)