Prepares to publish changes in the tides? (5)
I believe the answer is:
edits
'prepares to publish' is the definition.
(I've seen this in another clue)
'changes in the tides?' is the wordplay.
'changes in' indicates anagramming the letters (I've seen 'change in' mean this).
'tides' is an anagram of 'EDITS'.
(Other definitions for edits that I've seen before include "Revises" , "Checks" , "Modifies" , "Prepares for publication" , "Proofreads" .)