1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) not easy; requiring great physical or mental effort to accomplish or comprehend or endure 2) united states chemist who discovered deuterium (1893-1981) 3) a source of danger; a possibility of incurring loss or misfortune 4) being or occurring at an advanced period of time or after a usual or expected time DOWN 1) a violent throw 2) an elaborate song for solo voice 3) something left after other parts have been taken away 4) (slang) offensive term for a lesbian who is noticeably masculine ** Scroll down for solution. ** Are you sure you want to peek? hard urey risk late