Book's printing (7)
I believe the answer is:
edition
'book's printing' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for edition that I've seen before include "Copies of book printed from one set of type" , "Issue of a publication" , "I die not (anag)" , "Particular form of a published text" , "Issue of a book" .)