Related Clues:

• The 'C' in U.P.C.
• A spy may crack it
• Sir or madam
• Sentence subject, usually
• Bar ___
• It may be abstract
• Word before a verb, maybe
• Programmer's output
• This answer is one
• Programmers' writing
• Word with bar or binary
• Subject word
• See 46-Down
• You name it
• Something to break