Feature of Brontë novel is a desire (9)
I believe the answer is:
diaeresis
'feature of bronte' is the definition.
I can't tell whether this defines the answer.
'novel is a desire' is the wordplay.
'novel' indicates an anagram (letters in a new or novel order).
'is'+'a'+'desire'='isadesire'
'isadesire' is an anagram of 'DIAERESIS'.
Can you help me to learn more?
(Other definitions for diaeresis that I've seen before include "Mark of two dots over a vowel" , "A couple of points" , "naive, lacking this?" .)