Vehicle for Ben-Hur's tea-party? (7)
I believe the answer is:
chariot
'vehicle for ben-hur's' is the definition.
(I've seen this in another clue)
'tea-party?' is the wordplay.
'tea' becomes 'cha' (cha is a type of tea).
'party?' becomes 'riot' (I can't explain this - if you can you should give a lot more credence to this answer).
'cha'+'riot'='CHARIOT'
Can you help me to learn more?
(Other definitions for chariot that I've seen before include "Ancient horse-drawn war vehicle" , "ceremonial carriage" , "Roman two-wheeled vehicle" , "coach" , "Horse-drawn racing vehicle; oat rich (anag.)" .)