Instruct one in tract I'd put out (12)
I believe the answer is:
indoctrinate
'instruct' is the definition.
(indoctrinating is a kind of instructing)
'one in tract i'd put out' is the wordplay.
'put out' indicates anagramming the letters.
'one'+'in'+'tract'+'id'='oneintractid'
'oneintractid' with letters rearranged gives 'INDOCTRINATE'.
(Other definitions for indoctrinate that I've seen before include "attempt to brainwash" , "Imbue (someone) with an opinion" , "change ideology" .)