Ground alight (4)
I believe the answer is:
land
I believe this is a double definition.
'ground' is the first definition.
(I know that ground is a kind of land)
'alight' is the second definition.
(I've seen this in another clue)
(Other definitions for land that I've seen before include "Ground; country" , "Lift with ropes and pulleys" , "Country, state" , "See 3" , "Property" .)