call A to account

split hairs

chew the fat

cross A's path

pay through the nose

of all others

a fly on the wall

spring chicken

squeak by

on the beam

run with the ball

highway robbery

stack the cards

hush money

have a crack at

run A ragged

knuckle under

start the ball rolling

jump down A's throat

at the top of one's game

steal A's thunder

go scot-free

keep one's nose to the grindstone

come up for air

step in for

sing the same tune

an open-and-shut case

without further ado

scrape the bottom of the barrel

drown out

step into the breach

hush money

no holds barred

step on A's toes

cue in

on the skids

run rings around

fall from grace

keep one's pants on

step on it