Unfinished dessert also known as savoury dish (8)
I believe the answer is:
moussaka
'savoury dish' is the definition.
(I've seen this before)
'unfinished dessert also known' is the wordplay.
'unfinished' means to remove the last letter.
'dessert' becomes 'mousse' (mousse is a kind of dessert).
'also known' becomes 'aka' (I can't justify this - if you can you should believe this answer much more).
'mousse' with its final letter removed is 'mouss'.
'mouss'+'aka'='MOUSSAKA'
'as' is the link.
Can you help me to learn more?
(Other definitions for moussaka that I've seen before include "Greek dish of mince layers, aubergine and cheese sauce" , "main course in Greece" , "Balkan dish of meat, aubergines, tomatoes and cheese" , "Greek dish of layers of minced meat, aubergine etc topped with cheese sauce" , "Casserole of aubergine and ground lamb" .)