Lacking elegance, not being socially divided (9)
I believe the answer is:
classless
'socially divided' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives sometimes define each other.
'lacking elegance not' is the wordplay.
'lacking elegance' becomes 'class' (class is a kind of elegance. I am not sure about the 'lacking' bit.).
'not' becomes 'less' (I've seen this in other clues).
'class'+'less'='CLASSLESS'
'being' acts as a link.
Can you help me to learn more?
(Other definitions for classless that I've seen before include "Lacking distinction" , "having no social distinctions" , "Society of socialist ideal" , "lacking social order" , "like an unemployed teacher" .)