The initial idioms of the letter A

argue the toss	arguing for the sake of arguing
argue with	argument
happy as a duck in Arizona	ark ruffian
ark	arm and a leg
arm candy	arm to the teeth
arm up	armchair general
armed and dangerous	armed to the teeth
army	arm in arm
arm	armor
armour	armpit
arm's length	arm-twister
arm-twisting	army volunteer
arise from	around and around
around Robin Hood's barn	around the bend
around the block	around the clock