Not socially divisive when not teaching? (9)
I believe the answer is:
classless
'not socially divisive' is the definition.
I can't judge whether this definition defines the answer.
'not teaching?' is the wordplay.
I cannot quite understand how this works, but
'teaching?' could be 'class' (class is a kind of teaching) and 'class' is found within the answer.
The remaining letters 'less' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'when' is the link.
Can you help me to learn more?
(Other definitions for classless that I've seen before include "Society of socialist ideal" , "having no social distinctions" , "lacking social order" , "like an unemployed teacher" , "Lacking distinction" .)