Related Clues:
- Musical units
- Excludes
- Butter units
- Sprinter's concern
- Hawking's ''A Brief History of ___''
- Certain healer
- Cell wall, perhaps
- Milky Way and others
- Appeal to the ump
- Gin mills
- Where some screwdrivers are sold
- Word with study or bomb
- Entertainment giant __ Warner
- With 16-Across, an abbr. for one is hidden in each 15-letter answer
- Components of some codes