Fish served in delicious almonds (6)
I believe the answer is:
salmon
'fish' is the definition.
(salmon is a kind of fish)
'in delicious almonds' is the wordplay.
'in' says the answer is hidden in the clue.
'SALMON' is hidden within 'delicious almonds'.
'served' is the link.
(Other definitions for salmon that I've seen before include "Legendary fish of knowledge" , "Large fish with pink flesh" , "Sockeye, for example" , "Freshwater fish; colour" , "Sockeye, the swimmer" .)