Poet, republican, reinterpreted myths about eastern queen (9)
I believe the answer is:
rhymester
'poet' is the definition.
(I know that rhymester is a type of poet)
'republican reinterpreted myths about eastern queen' is the wordplay.
'republican' becomes 'r' (abbreviation).
'reinterpreted' indicates an anagram.
'about' indicates putting letters inside.
'eastern' becomes 'e'.
'queen' becomes 'er' (abbreviation for Elizabeth Regina).
'myths' with letters rearranged gives 'hymst'.
'hymst' going around 'e' is 'hymest'.
'r'+'hymest'+'er'='RHYMESTER'
(Other definitions for rhymester that I've seen before include "Versifier" , "Inferior poet" , "Writer of short poems" , "Would-be poet" , "mediocre poet" .)