Related Clues:
- Floor washer
- Shift and Tab, for two
- Tab and Caps Lock, e.g
- Absorbent implement
- Stylist’s challenge
- Typists hit them
- Deal with a spill
- Floor cleaner’s tool
- Piano's 'ivories'
- They open doors
- Custodian’s tool
- Tool for a spill
- Typically lost items that are 'found' in the starts of 16-, 24-, 45- and 57-Across
- Things janitors keep on rings
- Much of a typewriter