Crossword puzzle clue "someone may look deep into yours"

Someone may look deep into yours

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

Yours and yours only

Someone should look into it

Classic song with the words "Look away! Look away! Look away!"

Look and look and look

Someone else's kid compared to yours?

You might give yours up for someone with a walker