Payment for travel and food (4)
I believe the answer is:
fare
'food' is the definition.
(I know that fare is a type of food)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for fare that I've seen before include "Paying passenger" , "Transport charge" , "Payment for journey" , "Price of passage" , "Commons" .)