Moving article about posh woman instrumental in Rome's transition from a monarchy to a republic (8)
I believe the answer is:
lucretia
'woman instrumental in rome's transition from a monarchy to a republic' is the definition.
I can't tell whether this definition defines the answer.
'moving article about posh' is the wordplay.
'moving' indicates anagramming the letters.
'about' means one lot of letters goes inside another.
'posh' becomes 'u' (abbreviation for upper-class - opposite to non-u).
'article' with letters rearranged gives 'lcretia'.
'lcretia' enclosing 'u' is 'LUCRETIA'.
Can you help me to learn more?
(Other definitions for lucretia that I've seen before include "The Rape of - (Benjamin Britten)" , "Woman in Roman legend" , "raped girl" , "rape victim" .)