Don't notice the name on the book (6)
I believe the answer is:
missal
'book' is the definition.
(I know that missal is a type of prayer-book)
'don't notice the name on' is the wordplay.
'don't notice' becomes 'miss' (I can't justify this - if you can you should believe this answer much more).
'the name' becomes 'Al'.
'on' means one lot of letters go next to another.
'miss'+'al'='MISSAL'
'the' acts as a link.
Can you help me to learn more?
(Other definitions for missal that I've seen before include "Prayer book for th Catholic mass" , "Church book covering all services in the year" , "Book of church texts" , "guide for the services" , "Mass medium" .)