Put back some odd books (5)
I believe the answer is:
'books' is the definition.
(tome is a kind of book)
'put back some odd' is the wordplay.
'back' says to take the final letters.
'odd' indicates anagramming the letters.
The final letter of 'put' is 't'.
'some' with letters rearranged gives 'omes'.
(Other definitions for tomes that I've seen before include "works" , "Large scholarly books" , "Big books" , "Weighty books" .)