Said ... "Not out to sow the seeds" (6)
I believe the answer is:
instil
'said not out to sow the seeds' is the definition.
I can't tell whether this defines the answer.
'not out to sow the seeds' is the wordplay.
'not out' becomes 'in' ('in' is the opposite to 'out').
'to sow the seeds' becomes 'stil' (I can't justify this - if you can you should believe this answer much more).
'in'+'stil'='INSTIL'
Can you help me to learn more?
(Other definitions for instil that I've seen before include "Gradually establish something in a person's mind" , "Infuse (something) slowly into the mind" , "Mentally fix" , "Introduce gradually into mind, say ideas" , "Implant (in the mind)" .)