Where people go on eating (6,3)
I believe the answer is:
dining car
'where people' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'go on eating' is the wordplay.
'go' becomes 'car' (I can't justify this - if you can you should believe this answer much more).
'on' means one lot of letters go next to another.
'eating' becomes 'dining' (dining is a kind of eating).
'car' put after 'dining' is 'DINING-CAR'.
Can you help me to learn more?
(Other definitions for dining car that I've seen before include "Railway carriage with a restaurant" , "Railway coach serving food" , "meals on wheels provider" , "fast food here" , "Restaurant area on train" .)