The initial idioms of the letter R

red as a beetroot	red carpet
red cent	red dog
red eye	red-faced
red flag	red gravy
red hot	red in the face
red in the face, be	red ink
red meat	red meat rhetoric
red mist	the red mist descends
red sky at night, shepherd's delight	red sky in the morning, shepherd's warning
red state	red tape
red tide	red-blooded
red-carpet treatment	redd up
rededicate oneself or to	redeem
redeem (one)self	redeeming feature
red-hot	red-hot mama