Mediterranean food from Suez, emphatically rejected (4)
I believe the answer is:
meze
'mediterranean food' is the definition.
'from suez emphatically rejected' is the wordplay.
'from' indicates a hidden word.
'rejected' shows that the letters should be reversed in order.
'ezem' is hidden in the letters of 'suez emphatically'.
'ezem' reversed gives 'MEZE'.
(Other definitions for meze that I've seen before include "Turkish hors d'oeuvres" , "Mediterranean dishes" , "Greek appetiser" , "Mediterranean snacks" , "Selection of small dishes served in Greek or Turkish cuisine" .)