Seafood that’s variable filling roll, first wiped (6)
I believe the answer is:
oyster
'seafood' is the definition.
(oyster is a type of seafood)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for oyster that I've seen before include "Succulent shellfish" , "Bivalve that grows pearls" , "Seafood item sometimes eaten alive" , "Pearl-producing shellfish" , "Shade of greyish white" .)