3: Valuable coat of arms positioned (5)
 6: Subject to constant cold (5)
 8: Retro eatery has nothing covered in grease (5)
 9: Stop in a tiny settlement in ancient times (9)
 10: I'd returned broken cover part, officially (7)
 11: Bad example or examples (7)
 13: One who regrets having left leader (5)
 15: Iridescent stone contains quirk having to do with vision (7)
 17: Colorful spectrum to distort brain - ow! (7)
 18: Me, in bed with heavenly body? (5)
 20: Staying awfully dark (7)
 22: Amplification device for 'Murder, a Novel' (7)
 23: Dowdiest rear in Mexican party, almost (9)
 25: Oddly, derros wont die in water! (5)
 26: Drive back pariah from the East (5)
 27: Cancel Times and Enquirer initially (5)