Declared wharf second person signified is referred to in written record (8)
I believe the answer is:
document
'written record' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for document that I've seen before include "Don cut me (anag)" , "Written record" , "Piece of written matter" , "Piece of writing, of an official nature perhaps" , "Official paper" .)