Author has residence in the south east (6)
I believe the answer is:
scribe
'author' is the definition.
(I've seen this in another clue)
'residence in the south east' is the wordplay.
'residence' becomes 'crib' (I am not sure about this - if you are sure you should believe this answer much more).
'in the' indicates putting letters inside.
'south east' becomes 'SE' (abbreviation).
'crib' going into 'se' is 'SCRIBE'.
'has' is the link.
Can you help me to learn more?
(Other definitions for scribe that I've seen before include "Professional writer" , "Clerk, a public copyist" , "Document writer" , "A person writing" , "Letter-writer of old" .)