Revise Law, skipping chapter (4)
I believe the answer is:
edit
'revise' is the definition.
(thesaurus)
'law skipping chapter' is the wordplay.
'law' becomes 'edict' (I've seen this before).
'skipping' indicates named letters should be taken away.
'chapter' becomes 'c'.
'edict' with 'c' taken out is 'EDIT'.
(Other definitions for edit that I've seen before include "Ready for publication" , "Alter text" , "Prepare text for press" , "Redact, perhaps" , "Be in charge of (newspaper)" .)