Organised golf with my boss south of Scottish island (8)
I believe the answer is:
arranged
'organised' is the definition.
(arranging is a kind of organizing)
'golf with my boss south of scottish island' is the wordplay.
'golf' becomes 'g' (phonetic alphabet: alpha, bravo, charlie etc.).
'with' is a charade indicator (letters next to each other).
'my boss' becomes 'ed' (abbreviation for editor, the setter's boss).
'south of' is a charade indicator (letters next to each other).
'scottish island' becomes 'arran' (island off the coast of Scotland).
'g' put next to 'ed' is 'ged'.
'ged' put after 'arran' is 'ARRANGED'.
(Other definitions for arranged that I've seen before include "Scored" , "Ordered" , "Put in proper order" , "Fixed" , "Settled plans for something" .)