"Oh, honey, look at that shrewd baby!"

I was just doing a crossword puzzle online (those are great because you can always get a little cheat, even in the form of just one letter). There was one that was just bugging me the whole time. The clue was "Shrewd." It was 4 letters. I couldn't figure it out. Turns out the answer is "cute." Huh? Is there some definition that I am unaware of? Because I thought that shrewd was more like clever than cute. Weird.