Hardback produced by a printer (8)
I believe the answer is:
terrapin
'hardback' is the definition.
(I've seen this before)
'produced by a printer' is the wordplay.
'produced' indicates an anagram.
'by' means one lot of letters go next to another.
'a' put after 'printer' is 'printera'.
'printera' anagrammed gives 'TERRAPIN'.
(Other definitions for terrapin that I've seen before include "Little turtle" , "temporary building" , "Hardback" , "Give out" , "Swimmer" .)