DIABOLIC

Definitely not on the side of the angels (8)

Solution has appeared in 2 crosswords (1 across and 1 down):

• Quick crossword No 16,518 — 2023-04-14 23:00:25
  3A: Devilish (8)
• Quick crossword No 16,088 — 2021-11-29 00:00:40
  12D: Definitely not on the side of the angels (8)