From WordNet (r) 3.0 (2006) [wn]:
crispy
adj 1: tender and brittle; "crisp potato chips" [syn: crisp,
crispy]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Crispy \Crisp"y\ (-?), a.
1. Formed into short, close ringlets; frizzed; crisp; as,
crispy locks.
[1913 Webster]
2. Crisp; brittle; as, a crispy pie crust.
[1913 Webster]