One who’s drafted Conservative text for speech (9)
I believe the answer is:
conscript
'one who's drafted' is the definition.
(someone drafted or conscripted into war)
'conservative text for speech' is the wordplay.
'conservative' becomes 'con' (I've seen this in other clues).
'text for speech' becomes 'script'.
'con'+'script'='CONSCRIPT'
(Other definitions for conscript that I've seen before include "One compulsorily enlisted" , "Draftee" , "Person drafted into military service" , "Draft - recruit" , "Compulsorily enlisted person" .)