One whose chair was set up by the throne (6,9)
I believe the answer is:
regius professor
'throne' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
'one whose chair was set up by' is the wordplay.
I cannot really understand how this works, but
'one' could be 'i' (Roman numeral) and 'i' is found within the answer.
'by' could be 'of' and 'of' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'the' acts as a link.
Can you help me to learn more?
(Other definitions for regius professor that I've seen before include "Distinguished academic" , "prestigious chairman?" , "leading academic" , "Senior academic" , "Lecturer" .)