Reportedly chose chap from Scotland (4)
I believe the answer is:
pict
'chap from scotland' is the definition.
(the Picts were a historical people of Scotland)
'reportedly chose' is the wordplay.
'reportedly' shows a homophone (sound like).
'chose' becomes 'picked' (picking is a kind of choosing).
'picked' sounds like 'PICT'.
(Other definitions for pict that I've seen before include "Northerner" , "Ancient north Briton" , "Literary term for painted woman" , "Old Scot" , "Ancient Scot in Roman times" .)