Heavenly food provided by male sibling in vast continent (8)
I believe the answer is:
ambrosia
'heavenly food' is the definition.
(ambrosia is the food of the greek gods)
'male sibling in vast continent' is the wordplay.
'male' becomes 'm' (common abbreviation).
'sibling' becomes 'bro' (I've seen this before).
'in' indicates putting letters inside.
'vast continent' becomes 'asia'.
'm'+'bro'='mbro'
'mbro' going into 'asia' is 'AMBROSIA'.
'provided by' is the link.
(Other definitions for ambrosia that I've seen before include "meal fit for gods" , "Bee bread" , "dish fit for the gods when cooked without salt" , "Food of Greek and Roman gods" , "luxury food" .)