what does "clear across" mean? Gilbert Blythe wasn't used to putting himself out to make a girl look at him and meeting with failure. She should look at him, that red-haired Shirley girl with the little pointed chin and the big eyes that weren't like the eyes of any other girl in Avonlea school. Gilbert reached across the aisle, picked up the end of Anne's long red braid, held it out at arm's length and said in a piercing whisper: "Carrots! Carrots!" Anne looked at him and sprang to her feet. She flashed one indignant glance at Gilbert from eyes whose angry sparkle was swiftly quenched in equally angry tears. "You mean, hateful boy!" "How dare you!" And then--thwack! Anne had brought her slate down on Gilbert's head and cracked it--slate not head--clear across. ----- In the last line, what does "clear across" mean?