Yes, crisp is a Scrabble word!

Verb

1. Make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in

2. Make brown and crisp by heating

Adjective

1. (of something seen or heard) clearly defined

2. Tender and brittle

3. Pleasantly cold and invigorating

4. Pleasingly firm and fresh

5. (of hair) in small tight curls

6. Brief and to the point; effectively cut short; `yes'"

Noun

1. A thin crisp slice of potato fried in deep fat