Our land is cultivated but lumpy (7)
I believe the answer is:
nodular
'lumpy' is the definition.
(I've seen this before)
'our land is cultivated' is the wordplay.
'is cultivated' indicates anagramming the letters.
'our'+'land'='ourland'
'ourland' with letters rearranged gives 'NODULAR'.
'but' acts as a link.
(Other definitions for nodular that I've seen before include "Lumpy" , "Having tiny knots" , "Relating to swellings" , "With small swellings" , "Like a small swelling" .)