Possible Clues:

• *Greek salad component
• See the caf? mixing up a Greek speciality
• Greek salad topper
• Reaction to The Snapper and 4 down - from the start it's produced for consumption in Greece
• Female separatist movement provides a word to camera - it's produced by the Greeks
• Rotten fate in Passendale creates stink perhaps? It's not only swallowed by the Greeks!