Discs for smutty flicks that contain a lot of butts (8)
I believe the answer is:
ashtrays
'discs' is the definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Maybe there's an association between them I don't understand?
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for ashtrays that I've seen before include "Receptacles for tobacco detritus" , "smokers' necessities" , "Receptacles for smokers" , "where fags end up" , "butts in these?" .)