an Austin cathedral?); GIANT COWBOY BILL (55A. Hefty invoice for boots and spurs?). Other long entries include ALAN ALDA (8D. Star of Broadway’s “QED,” 2001-01); AUTOBAHN (41D. Famously fast route); CLASSICAL (18A. Section in a record store); ECOTOURS (40D. Trips through rain forests, maybe); NOT SO SURE (62A. On the fence);