German-born Greek character turns up for an exchange of views (6)
I believe the answer is:
debate
'an exchange of views' is the definition.
(I've seen this before)
'german-born greek character turns up' is the wordplay.
'german-born' becomes 'deb' (I can't explain this - if you can you should believe this answer much more).
'greek character' becomes 'eta' (letter from the Greek alphabet).
'turns up' shows that the letters should be reversed in order.
'eta' backwards is 'ate'.
'deb'+'ate'='DEBATE'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for debate that I've seen before include "Discussion throung argument" , "Argue the toss" , "Formal discussion through argument" , "Formal public discussion" , "Verbal disputation" .)