Character in novella that you consider memorable, ultimately (6)
I believe the answer is:
nature
'character' is the definition.
(I've seen this before)
'in novella that you consider memorable ultimately' is the wordplay.
'ultimately' indicates one should take the final letters.
The last letters of 'in novella that you consider memorable' are 'NATURE'.
(Other definitions for nature that I've seen before include "Kind - disposition" , "- Study; - reserve" , "mother, so-called" , "Kind, sort; countryside" , "Character, disposition" .)