Repair plot of land (5)
I believe the answer is:
patch
I believe this is a double definition.
'repair' is the first definition.
(I know this)
'plot of land' is the second definition.
(patch can mean a piece of ground)
(Other definitions for patch that I've seen before include "Court plaster" , "Mend with piece of material" , "Piece of material used to cover hole in clothes" , "Plot - piece of cloth - period" , "Piece of sewn-on material" .)