Raunchy trio stripped naked (6)
I believe the answer is:
ribald
'raunchy' is the definition.
(thesaurus)
'trio stripped naked' is the wordplay.
'stripped' means to look at the middle letters (outside letters removed).
'naked' becomes 'bald' (I can't justify this - if you can you should believe this answer much more).
The centre of 'trio' is 'ri'.
'ri'+'bald'='RIBALD'
Can you help me to learn more?
(Other definitions for ribald that I've seen before include "Humorously vulgar" , "Scurrilous, bawdy" , "Foul-mouthed" , "Funny, but not nice" , "Humourous in vulgar way" .)