Related Clues:
- Halves of 24-Down
- Northern extremes?
- Father goes back and forth around study finding extras
- Innings' three?
- "London" has two
- Low-ranking U.S.N. officer
- Low-ranking off
- Wesley Crusher's rank on 'ST: TNG'
- Cincinnati triple
- Officer on a PT boat: Abbr
- Bill riders, for example
- The two for none?
- Contract extras, and read differently, a hint to this puzzle's theme
- U.S.N.A. grad: Abbr
- Halves of 38-Across