Said container of food is in French port (6)
I believe the answer is:
cannes
'french port' is the definition.
(I know that Cannes is a port)
'said container of food' is the wordplay.
I cannot quite understand how this works, but
'container' could be 'can' (can is a kind of container) and 'can' is found within the answer.
'food' could be 'e' (E is an example) and 'e' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
'is in' acts as a link.
Can you help me to learn more?
(Other definitions for cannes that I've seen before include "Mediterranean port" , "French city with annual film festival - sounds permissive" , "City in the French Riviera" , "Nice neighbour" , "French town with annual film festival - sounds permissive" .)