It's not right for Parisians to be socially inept (6)
I believe the answer is:
gauche
'inept' is the definition.
(gauche means socially inept or awkward)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for gauche that I've seen before include "Awkward left in France" , "not right for Parisian" , "Unsophisticated and socially awkward" , "inelegant" , "Clumsy, socially awkward (6)" .)