Crossword puzzle clue "it may have a code"

"You may have the universe if I may have ___" (Verdi opera line)

It may have a code

Secret code, in the secret code

Code hidden in a bar code

Actor who said "Some people have youth, some have beauty—I have menace"

Sounds you might make when I say "Would you rather watch your parents have sex or have your parents watch you have sex?"

Trump that may or may not have a face

A sub may or may not have one planned