Put an end to a book and finish page off (7)
I believe the answer is:
abolish
'put an end to' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for abolish that I've seen before include "Cancel or abrogate" , "delete" , "Axe" , "Quash" , "Put an end to, formally" .)