"__-Dick; or, The Whale" (4)
I believe the answer is:
moby
(Other definitions for moby that I've seen before include "Herman Melville's great novel '. . . . Dick'" , "A phone" , "Herman Melville's great white whale, . . . . Dick" , "Herman Melville wrote '. . . . Dick'" , "and 20 Across: Herman Melville novel" .)