Oriental ate out and had a banquet (7)
I believe the answer is:
feasted
'had a banquet' is the definition.
The answer and definition can be both related to consumption as well as being past participle verbs.
Perhaps they are linked in a way I don't understand?
'oriental ate out' is the wordplay.
'oriental' becomes 'east' (I can't explain this - if you can you should believe this answer much more).
'ate' becomes 'fed' ('feed' can be a synonym of 'eat').
'out' is an insertion indicator.
'east' going inside 'fed' is 'FEASTED'.
'and' is the link.
Can you help me to learn more?
(Other definitions for feasted that I've seen before include "Ate lavishly" , "Banqueted" , "Ate high off the hog" , "Had a lot to eat" .)