Answer: authority

AnswerCrossword Clue
AUTHORITYHoyle, for one
AUTHORITYSay-so
AUTHORITYRoger Ebert, when it comes to films
AUTHORITYCommand.
AUTHORITYPower.
authoritythe power or right to control the behaviour of others
authorityThe power or right to give orders, make decisions, and enforce obedience
authorityA book or other source able to supply reliable information or evidence, typically to settle a dispute
authorityA person with extensive or specialized knowledge about a subject; an expert
authorityOfficial permission; sanction
authorityThe power to influence others, esp. because of one's commanding manner or one's recognized knowledge about something
authorityThe right to act in a specified way, delegated from one person or organization to another
authorityA person or organization having power or control in a particular, typically political or administrative, sphere
authorityThe confidence resulting from personal expertise