Crossword puzzle clue "song that's not yours"

Yours and yours only

1930s anti-marijuana propaganda film that ends with the principal of a school saying, "The next tragedy may be that of your daughter...or your son...or yours or yours..." [points at the camera] "... o

Song that's not yours

"___ Like Yours . . . ": Martha and the Vandellas song

Used part of someone else's song in yours

"___, Sealed, Delivered, I'm Yours" (Stevie Wonder song)

You may not want to show yours

Not yours, in Tours