1) Blow the foam off a brew 2) Chop off the old block 3) Cut the head of 4) Decapitate 5) Decollate 6) Execute 7) Exclusively Saxon word 8) Exclusively Anglo word 9) Guillotine 10) Kill 11) Kill, for the revolution 12) Obey the Queen of Hearts 13) Punish barbarically 14) Send to the guillotine 15) Take off the top Found on https://www.crosswordclues.com/clue/behead
to cut off the head of; kill or execute by decapitation. · (of a pirate stream) to divert the headwaters of (a river, stream, etc.). Found on https://www.infoplease.com/dictionary/behead