Q: Think of a common street sign with three words: four letters in the first word, four letters in the second word and three letters in the last. Drop the last letter of the first word in the sign and you'll get a new word that is a synonym of the last word in the sign. What is the sign?Mr. Shortz states that it is a "common street sign" so I'm sure it's not Beware of Invisible Cows. However, I'm suspicious; I've looked up and down a list of Road Signs and don't see the answer. No doubt I'm thinking too hard so let me ponder this a bit more.
Feel free to add clues in the comments, but no outright answers or spoilers, please.
Edit: Remember Will didn't say traffic signs. That was a clue. In addition, hopefully my clue indirectly made you think of animals.
A: CURB YOUR DOG (Cur = Dog)