Cinque Port snack maybe (8)
I believe the answer is:
sandwich
I believe this is a double definition.
'cinque port' is the first definition.
(Sandwich in Kent was one of the Cinque Ports)
'snack maybe' is the second definition.
(Other definitions for sandwich that I've seen before include "Layered sponge cake" , "See 16" , "Maybe double-decker" , "Picnic food" , "Snack food" .)