"Ed Wood" Oscar winner Martin (6)
I believe the answer is:
landau
'ed wood oscar winner martin' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for landau that I've seen before include "An auld type of carriage" , "Four-wheeled horse-drawn carriage" , "Old-fashioned four-wheeled covered carriage" , "Old four-wheeled covered carriage" , "Four-wheeled vehicle with two folding hoods" .)