Where one might alight from train carriage (8)
I believe the answer is:
victoria
This clue is a double definition.
'where one might alight from train' is the first definition.
(Victoria is a train station)
'carriage' is the second definition.
(I know that victoria is a type of carriage)
(Other definitions for victoria that I've seen before include "Mrs Beckham" , "Queen - lake -sponge" , "Queenly" , "English queen" , "Tree; part of hand" .)