1: Part of stair is erect (5)
4: Behind and down and out (3)
6: Essential part of Cayce's power! (3)
7: Is next to a total bust (5)
8: Somehow it is clear and practical (9)
10: Severely criticize cook (5)
11: Neil lost a letter and ended up with nothing (3)
12: Reportedly is nostalgic for wife (3)
13: Turning up to follow bashful rodent (5)