Line included by you, e.g. after revising oration (6)
I believe the answer is:
eulogy
'oration' is the definition.
(thesaurus)
'line included by you e g after revising' is the wordplay.
'line' becomes 'l'.
'included by' means one lot of letters goes inside another.
'after' says to put letters next to each other.
'revising' is an anagram indicator.
'you'+'e'+'g'='youeg'
'youeg' with letters rearranged gives 'euogy'.
'l' inserted into 'euogy' is 'EULOGY'.
(Other definitions for eulogy that I've seen before include "Formal expression of praise" , "Formally expressed praise" , "'Encomium, paean (6)'" , "Expression of praise for someone recently dead" , "Panegyric" .)