Unsophisticated sort of tyranny on line (5)
I believe the answer is:
yokel
'unsophisticated sort' is the definition.
(I've seen this in another clue)
'of tyranny on line' is the wordplay.
'of tyranny' becomes 'yoke' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'on' says to put letters next to each other.
'line' becomes 'l' (used when specifying particular lines from a poem).
'yoke'+'l'='YOKEL'
Can you help me to learn more?
(Other definitions for yokel that I've seen before include "rustic type" , "Unsophisticated rustic" , "Country bumpkin" , "Countryman" , "Hick" .)