Yes, crusty is a Scrabble word!
...and is worth 11 points in Scrabble, and 12 points in Words with Friends
crusty
Adjective
1. Having a hardened crust as a covering
2. Brusque and surly and forbidding
What Scrabble words can I make with the letters in crusty?
6 Letter Words
5 Letter Words
4 Letter Words
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3 Letter Words
2 Letter Words