Went over with a Yankee editor (7)
I believe the answer is:
perused
'went' is the definition.
The answer and definition can be both to do with perception as well as being past participle verbs.
Perhaps they are linked in a way I don't understand?
'over with a yankee editor' is the wordplay.
'over' means one lot of letters go next to another.
'with' says to put letters next to each other.
'a' becomes 'per' (eg 'one a day' means 'one per day').
'yankee' becomes 'us' (I can't explain this - if you can you should give a lot more credence to this answer).
'editor' becomes 'ed' (abbreviation).
'per' put next to 'us' is 'perus'.
'perus'+'ed' is 'PERUSED'.
Can you help me to learn more?
(Other definitions for perused that I've seen before include "Browsed" , "Scanned" , "Studied" , "Read (something) very carefully" .)