You mightn't have guessed, but Andrew Dice Clay, that leather-jacketed fount of squirt fantasies that defy not just good taste but human anatomy, wants to be understood. He has feelings and, as he says, when you're on top, people like to knock you. One day before critics began bleeping all over his new movie, "The Adventures of Ford Fairlane," the self-described "hottest comic in the world" issued a misty on-air apologia to Arsenio Hall. He's just a kid from Brooklyn who believed in himself, worked hard for 10 years to get where he is today, and anyone who doesn't like it can . . . keep his opinions to himself, or words to that effect. A couple of days later, he was back at it with Diane Sawyer on ABC's "Primetime Live," elucidating the difference between Andrew Dice Clay, the character, and Andrew Clay Silverstein, the real person. "If I was Dice to you right now . . . I'd be sitting here, like, 'So let me ask you something, honey. You live alone? You wearing panties?'That's what Dice would do. He shocks." To which the presumably unshockable Sawyer responded, "Everybody asks me that all the time."