Recite to nine, perhaps (6)
I believe the answer is:
intone
'recite' is the definition.
(I've seen this in another clue)
'to nine perhaps' is the wordplay.
'perhaps' is an anagram indicator.
'to'+'nine'='tonine'
'tonine' is an anagram of 'INTONE'.
(Other definitions for intone that I've seen before include "Recite without inflection" , "Speak in chant or drone" , "Recite as a chant" , "Sing (prayer) on one note" , "Recite with little variation in pitch" .)