Writer's bed in south east (6)
I believe the answer is:
scribe
'writer's' is the definition.
(scribe is a kind of writer)
'bed in south east' is the wordplay.
'bed' becomes 'crib' (bed for a child).
'in' is an insertion indicator.
'south east' becomes 'SE' (abbreviation).
'crib' going inside 'se' is 'SCRIBE'.
(Other definitions for scribe that I've seen before include "Ancient copyist of manuscripts" , "Document copier (hist.)" , "Scholar of Jewish law" , "Copier of (handwritten) documents" , "Document writer" .)