Crossword puzzle clue "where you might try mustard with a knife"

Where you might try Mustard with a knife?

"Going under the knife" knife

You might rate them on their route and they might rate you on you vomited everywhere

"___ first you don't succeed, try, try again": 2 wds.

Org. for Ann Miller, who said "You try to help them, try to sing and dance ... it's heartbreaking."

You might rub a knife across it

You might stick a knife in it

Baffles (ABOUT THIS PUZZLE: If you saw the headline "Fiend Found!" you might instantly notice that, between the two words, only the vowels change — the consonants stay put. Okay, if you were me, you'