Luxury food produced by male relative in a vast continent (8)
I believe the answer is:
ambrosia
'luxury food' is the definition.
(I've seen this before)
'male relative in a vast continent' is the wordplay.
'male' becomes 'm' (common abbreviation).
'relative' becomes 'bro' (short for brother).
'in' is an insertion indicator.
'a vast continent' becomes 'asia' (I've seen this in another clue).
'm'+'bro'='mbro'
'mbro' placed into 'asia' is 'AMBROSIA'.
'produced by' is the link.
(Other definitions for ambrosia that I've seen before include "Food of classical gods" , "Nectar of the gods" , "luxury food" , "food from the deli?" , "I'm so Arab (anagram)" .)