Rear coaches (5)
I believe the answer is:
train
I believe this is a double definition.
'rear' is the first definition.
(I've seen this in another clue)
'coaches' is the second definition.
(I've seen this before)
(Other definitions for train that I've seen before include "Coach; attendants" , "Railway engine" , "Long back section of a gown that's drawn along the floor" , "Rail transport" , "Form of transport" .)