Blue prints? (7)
I believe the answer is:
erotica
'blue prints?' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for erotica that I've seen before include "Raunchy material" , "Salacious" , "works to stimulate passion?" , "(Items of) titillating art" , "Art of a sexual nature" .)