Wogan's new vehicle? (5)
I believe the answer is:
wagon
'vehicle?' is the definition.
(wagon is a kind of vehicle)
'wogan's new' is the wordplay.
'new' indicates an anagram.
'wogan' is an anagram of 'WAGON'.
(Other definitions for wagon that I've seen before include "Vehicle for transporting goods" , "Wheeled vehicle drawn by a horse" , "Wild West trail vehicle?" , "Trailer, railway truck" , "Horse-drawn vehicle" .)