COTD: Beam from series of stairs covered by stripped crayon (3,2,5)

day 16 of an experiment in which i press the "random word" button on onelook and make a cryptic clue out of it. (was confused with this phrase appearing, since although it's common it's barely in any dictionaries, but i made do)

day 15

day 14, day 13, day 12, day 11, day 10, day 9, day 8

day 7, day 6, day 5, day 4, day 3, day 2, day 1