Came by doctor and Pope upset with row (7,2)
I believe the answer is:
dropped in
'came by' is the definition.
('drop in' can be a synonym of 'come by')
'doctor and pope upset with row' is the wordplay.
'doctor' becomes 'dr' (abbreviation).
'and' means one lot of letters go next to another.
'upset' indicates anagramming the letters.
'with' means one lot of letters go next to another.
'row' becomes 'din' (both can mean a loud disturbance).
'pope' is an anagram of 'oppe'.
'dr'+'oppe'+'din'='DROPPED IN'
(Another definition for dropped in that I've seen is " called round".)