1: Unappealing environment for a snooze (3)
3: Headless rodent left by bird (5)
5: Rue loss of rare bird (5)
6: Rascal and wuss taking week off (3)
7: State fair without a tree (6,3)
8: Drawing, for example, a bit of a cartoon (3)
9: Black-out unhinged LuAnn (5)
11: Erin's heir is hardly content (5)
12: However, you expect trouble at first (3)