Move poet to pen right line (6)
I believe the answer is:
propel
'move' is the definition.
(I know that propel is a kind of move)
'poet to pen right line' is the wordplay.
'poet' becomes 'pope' (Alexander Pope).
'to pen' means one lot of letters goes inside another.
'right' becomes 'r' (common abbreviation).
'line' becomes 'l' (used when specifying particular lines from a poem).
'pope' going around 'r' is 'prope'.
'prope'+'l'='PROPEL'
(Other definitions for propel that I've seen before include "Cause to move forward with force" , "Launch" , "Derive of push forward" , "Give impetus to" , "Drive or push forward as with oars" .)