Person in front of a train (5)
I believe the answer is:
bride
'person in front of a train' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bride that I've seen before include "presumably honeymoon for me?" , "Newlywed" , "one going to church or office?" , "The Woman In White, perhaps?" , "new union member" .)