Awful story about English seafood (6)
I believe the answer is:
oyster
'seafood' is the definition.
(oyster is a kind of seafood)
'awful story about english' is the wordplay.
'awful' is an anagram indicator.
'about' means one lot of letters goes inside another.
'english' becomes 'e' (abbreviation).
'story' with letters rearranged gives 'oystr'.
'oystr' enclosing 'e' is 'OYSTER'.
(Other definitions for oyster that I've seen before include "Greyish pink" , "Pearl-producing shellfish" , "Shellfish (maybe the world!)" , "Secretive individual" , "Pearl-making mollusc" .)