One Parisian passes on lingerie (6)
I believe the answer is:
undies
'lingerie' is the definition.
(undies is a kind of lingerie)
'one parisian passes on' is the wordplay.
'one' becomes 'un' (northern English dialect form of 'one').
'parisian passes' becomes 'dies' (I've seen this in another clue. I am not sure about the 'parisian' bit.).
'on' says to put letters next to each other.
'un'+'dies'='UNDIES'
Can you help me to learn more?
(Other definitions for undies that I've seen before include "linen" , "clothing not normally seen" , "Undergarments (colloq.)" , "Pants" , "Knickers (abbrev.)" .)