Related Clues:

• One if by land, two if by sea, etc.
• Kind of word
• Value system
• Genetic or dress follower
• Preparation that needs a cracker?
• Set of principles
• Word with bar or area
• Secret signal
• The 'C' in U.P.C.
• A spy may crack it
• Bar ___
• Programmer's output
• Programmers' writing
• Word with bar or binary
• See 46-Down