Dance a routine that Parisian should cover (9)
I believe the answer is:
quadrille
'dance' is the definition.
(I know that quadrille is a type of square dance)
'a routine that parisian should cover' is the wordplay.
'routine' becomes 'drill' (you know the drill).
'that parisian' becomes 'que' ('that' in French).
'should cover' indicates putting letters inside.
'a'+'drill'='adrill'
'adrill' placed within 'que' is 'QUADRILLE'.
(Other definitions for quadrille that I've seen before include "(Music for a) square dance for four or more couples" , "Old square dance (performed by lobsters in Alice in Wonderland)" .)