Carriage seen in Portugal and Austria (6)
I believe the answer is:
landau
'carriage' is the definition.
(type of horse-drawn carriage)
'in portugal and austria' is the wordplay.
'in' says the answer is hidden in the clue.
'LANDAU' is hidden within 'portugal and austria'.
'seen' is the link.
(Other definitions for landau that I've seen before include "Old-fashioned four-wheeled covered carriage" , "Transport" , "Horse-drawn, folded-top carriage" , "A four-wheel covered carriage" , "Horse-drawn carriage or car with folding top" .)