Greatly exclamatory novelist? (5)
I believe the answer is:
scott
'novelist?' is the definition.
(I have seen 'old novelist' mean 'scott' so perhaps 'novelist' could also mean 'scott')
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for scott that I've seen before include "Sir Peter -----, ornithologist son of a great explorer" , "He died leading Antarctic expedition" , "one wanting to explore?" , "Sir Walter -, author of Guy Mannering" , "See other clues" .)