Answer:

LAW

AnswerCrossword Clue
LAWA rule of conduct
LAWStatute
LAWWord with blue or lemon
LAWEdict
LAWBailey's bailiwick
LAWTen Commandments, e.g.
LAWJude the actor
LAWSomething to practice
LAWBar topic
LAWPerry Mason's field
LAW"Blackstone's Commentaries" subject
LAWBoalt Hall attendee's focus
LAWBoalt Hall student's field
LAW"The ... is a ass": Dickens
LAWPrinciple
LAWDarrow's field
LAWScientist's formulation
LAW"The ... is a ass": Dickens's Mr. Bumble
LAWClerk's field
LAWJurisprudence
LAWLemon ...
LAWAttorney's field
LAWBlue ...
LAWField with cases
LAWKind of library
LAWOrder foundation
LAW"The Practice" profession
LAWCalling with cases
LAWMason's field
LAWPerry Mason's profession
LAWAttorney's profession
LAWBarrister's field
LAWPractice with briefs
LAWOrder's partner
LAWBusiness involving briefs
LAWMurphy's ..
LAWBar code?
LAWJudge's concern
LAWLitigator's field
LAWA kind of it begins the answers to starred clues