Possible Clues:

• Spicy dish from US port? No more
• Curry dish — the thing experimental unit served up
• Spicy dish, Latvian perhaps -- time for lunch?
• Time to tuck into island dish
• Pakistani curry dish, originating perhaps in 1970s' Birmingham
• The majority of sea food coming from India?
• Curry dish cooked and served in a flat-bottomed pot
• Curry with name meaning “bucket”
• Curry from Latvia perhaps not finished
• Latvian, possibly, at first introducing Pakistani cuisine