works like a charm, not champ

wangle an invitation, not wrangle

reckless driver, not wreckless

utmost, not upmost

vale of tears, not veil

without further ado, not adieu

the die is cast, not dye

tide one over, not tie

up to snuff, not stuff

take for granted, not granite

tartar sauce, not tarter

turn of speech, not term

spinal cord, not chord

stark raving mad, not stalk

steam turbine, not turban

say one’s piece, not peace

cease and desist, not seize

slake one’s thirst, not slack

[To hold one's peace means to maintain your silence.]
[To say one's piece means to make a statement.]

sleight of hand, not slight

social mores, not morays

spayed cat, not spade

rabble rouser, not rebel

rite of passage, not right or write

wrought iron, not rod or rot

plantar warts, not planter

poised to strike, not posed

pore over a text, not pour

pass muster, not mustard

passed away, not past

palm off on, not pawn