Vehicles with living quarters (8)
I believe the answer is:
caravans
'vehicles with living quarters' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for caravans that I've seen before include "Mobile homes towed by cars" , "Groups travelling together across deserts" , "Trailers with living quarters" , "Vehicles fitted for living in" , "Processions of camels travelling together in single file" .)