Directed by a good Scottish editor (6)
I believe the answer is:
guided
'directed' is the definition.
(guiding is a kind of directing)
'by a good scottish editor' is the wordplay.
'by' means one lot of letters go next to another.
'a good scottish' becomes 'guid' (Scottish version of 'good').
'editor' becomes 'ed' (abbreviation).
'guid'+'ed' is 'GUIDED'.
(Other definitions for guided that I've seen before include "Directed or steered" , "Directed as missile might be" , "Showed the way, led" , "Showed the way, lead" , "Directed the course of, 24 dn say" .)