Uncultivated land lord's kept in check (5)
I believe the answer is:
veldt
'uncultivated land' is the definition.
The answer and definition can be both locations as well as being singular nouns.
Maybe there's an association between them I don't understand?
'lord's kept in check' is the wordplay.
'lord' becomes 'ld' (abbreviation for the aristocratic title).
'kept in' means one lot of letters goes inside another.
'check' becomes 'vet' (to vet someone is to check their background).
'ld' going inside 'vet' is 'VELDT'.
Can you help me to learn more?
(Other definitions for veldt that I've seen before include "Southern African prairie" , "S. Afr. open grassland" , "Southern African grassland" , "SA grassland" , "Open country (S. Afr.)" .)