Cut down, or dropped down (4)
I believe the answer is:
fell
I believe this is a double definition.
'cut down' is the first definition.
(I know that cut down can be written as fell)
'dropped down' is the second definition.
(I've seen this in another clue)
(Other definitions for fell that I've seen before include "Bring down - hill" , "Dropped to the ground" , "Cut down; hill" , "Upland tract" , "Hew; tumbled" .)