Mouse kills snake:
viper: a poisonous snake
vicious: cruel
novice: just get started

Best man is wuff:
canine: dog
accessories: something that you add to other things

Man writes with tears:
fertilizer: a substance that is put on the land to make crops grow
hone: to improve your skill at doing something

Angler's arm found:
bargain: trade
suicide: kill by itself