| A crossword editor has to be very careful when changing one--unlike this puzzle's editor, who was careless four times herein |
| Environmentally friendly prefix |
| Thankless people |
| Teased mercilessly |
| Needless fuss |
| French instructor's directive during elocution lessons |
| Silly or mindless |
| Moving aimlessly |
| Absolutely useless |
| Apostropheless possessive |
| Baltimore specialty / Effortless task / Move on all fours with the belly up |
| Scaleless swimmer |
| Careless hurrying |
| Looking unfriendly |
| Footless animal |
| Render harmless, perhaps |
| Backless shoes |
| Colorless, flammable gas |
| Fluidless, as a barometer |
| Less approachable |
| Prefix meaning "less than normal |
| Meaningless chatter |
| Bacteria rendered harmless by pasteurization |
| Aesopian lesson |
| Full of worthless stuff |
| Flightless Australian bird |
| Ageless wonder among TV hosts |
| Fearless |
| Advice to a careless dresser, maybe |
| Paperless travel documents |