Carriage lamp originally with gold (6)
I believe the answer is:
landau
'carriage' is the definition.
(I've seen this before)
'lamp originally with gold' is the wordplay.
'originally' indicates taking the first letters.
'with' becomes 'and' (I've seen this before**).
'gold' becomes 'au' (Au is the chemical symbol for gold).
The first letter of 'lamp' is 'l'.
'l'+'and'+'au'='LANDAU'
(Other definitions for landau that I've seen before include "Old four-wheeled covered carriage" , "Four-wheeled horse-drawn carriage" , "Four-wheeled vehicle with two folding hoods" , "Old-fashioned four-wheeled covered carriage" , "Horse-drawn, folded-top carriage" .)