Super Quiz No. 2, Clue No. 2

Here we go folks; and, yes, this is a hard one....Any winner, should that unlikely event take place, ought to be enshrined in the Mensa Society, and declared a puzzle-master, cryptanalyst genius, and be lauded throughout the land....So, don't shy away from trying....who knows??....maybe the C.I.A. will hire you at $250,000 a year, and your fame and name will spread throughout the world!!! So, come'on guys & gals, lets get crack'en....... Part No. 1) Question; "It might be related to a hungry person eagerly devouring a hero sandwich ravenously." Firtst Clue; "One might say the sandwich has a hostile attitude to such a would- be eater. Today's Clue No. 2; "It moves between 2 worlds, and its bite is deadly. Today's Clue No. 3:Lusitania Today's Clue No. 4: Shark of Steel Part No. 2) Question; "Adults and tots play with its parts. First Clue; "Calif. Gold Rush." Today's Clue No. 2; "Damn that Zam, he's a wham!!" Today's Clue No. 3; Tinker. Today's Clue N0. 4: Aqualung breakfast dish Part No. 3) Question; ""It moves from state to state, but uses neither automobile nor plane." First Clue; "It may allude to something you'd display in your living room." Today's Clue No. 2; "Tom Bell's home is well known as a place that it does roam." Today's Clue No. 3; It's nature makes it hard to find, though it is everywhere. Today's Clue No. 4: Oscar Meyer's Cleaner Part No. 4; (Bonus Question); "If things go ever more poorly, And you can no longer find... Your confusion award, you may find these 2 words on your sword." First Clue; "Sometimes "Pennies From Heaven" have a long wait before the drought eases. Today"s No.2-correct answer to pt. No.3 gives you half answer to this one Today's clue No. 3;It could rhyme with immigration. Today's Clue No. 4: Not a word you're likely to hear used. Noun. Act of becoming increasingly unhappy.