Plots areas for cultivation (7)
I believe the answer is:
gardens
'plots' is the definition.
(garden is a kind of plot)
'areas for cultivation' is the wordplay.
'areas' becomes 'dens' (den is a kind of area).
'for' means one lot of letters go next to another (I've seen this in other clues).
'cultivation' becomes 'gar' (I can't explain this - if you can you should give a lot more credence to this answer).
'dens' after 'gar' is 'GARDENS'.
Can you help me to learn more?
(Other definitions for gardens that I've seen before include "In which you find weeds" , "Cultivated grounds" , "Ornamental grounds" , "Personal plots of ground" , "Park" .)