Articulate and extremely capable, she perhaps is superior (9)
I believe the answer is:
pronounce
'articulate' is the definition.
(I know that articulate can be written as pronounce)
'extremely capable she perhaps is superior' is the wordplay.
'extremely' suggests removing the centre (only the extremes of the word are used).
'she perhaps' becomes 'pronoun' ('she' is a pronoun).
'is superior' means one lot of letters go next to another.
'capable' with its centre removed is 'ce'.
'ce' put after 'pronoun' is 'PRONOUNCE'.
'and' is the link.
(Other definitions for pronounce that I've seen before include "Enunciate" , "Articulate in a certain way" , "Articulate clearly" , "make a declaration" , "Declare, announce" .)