1: Even I help 100 elves save five (9)
2: Cook ran; ragout spilled; one might jump to conclusions here? (8,5)
3: Curse the watcher hiding terrible evil within. (3)
4: Eeyore's nasty, and an ugly thing (7)
5: Sheds last one carelessly (4-3)
7: and 15 Novel alternative excised from huge spits (5,12)
9: Drive away roofing material before farmhouse becomes a target area (8,5)
14: Behold! Desperate alkie has a double (4-5)
16: Fellow put on English gold hat (7)
17: Ephemeral deity guards precious stone (7)
18: Church conceals torture instrument before king; it could be explosive. (7)
19: As one lacking a vice (5)
20: Reliable, timeless jet (5)