Crooked pair of girls, Parisian one taking the lead (7)
I believe the answer is:
illegal
'crooked' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for illegal that I've seen before include "murder sure is!" , "Felonious" , "Contrary to law" , "Prohibited by law" , "Unauthorised" .)