Seafood available from various storeys (7)
I believe the answer is:
oysters
'seafood' is the definition.
(I've seen this in another clue)
'various storeys' is the wordplay.
'various' is an anagram indicator.
'storeys' with letters rearranged gives 'OYSTERS'.
'available from' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for oysters that I've seen before include "Tasty pearl-producing bivalves" , "Marine molluscs" , "Yet Ross can find the marine creatures" , "Fleshy bivalves, may yield pearls" , "Succulent bivales" .)