Index in book makes desperate editor cry (9)
I believe the answer is:
directory
'index in book' is the definition.
'directory' can be an answer for 'book' (directory is a kind of book). I am unsure of the 'index in' bit.
'desperate editor cry' is the wordplay.
'desperate' indicates an anagram (I've seen this in other clues).
'editor'+'cry'='editorcry'
'editorcry' with letters rearranged gives 'DIRECTORY'.
'makes' is the link.
Can you help me to learn more?
(Other definitions for directory that I've seen before include "See 7" , "Book listing phone numbers" , "Book listing names of inhabitants, users etc" , "list of contacts" , "Telephone information service" .)