A new, ruder variety of lingerie (9)
I believe the answer is:
underwear
'lingerie' is the definition.
(I've seen this before)
'a new ruder variety' is the wordplay.
'variety' is an anagram indicator.
'a'+'new'+'ruder'='anewruder'
'anewruder' with letters rearranged gives 'UNDERWEAR'.
'of' is the link.
(Other definitions for underwear that I've seen before include "Vest, pants etc" , "Garments worn beneath other clothes" , "what lies beneath that uniform!" , "Slip maybe" , "Vests, knickers etc" .)