Actionable intelligence is information that can be acted upon, with the further implication that actions should be taken.
Actionable intelligence, or actionable insight, is often spoken of in terms of big data, as much of the challenge inherent in the huge amounts of data being gathered is discovering elements within it that a business can exploit to enhance performance.
In a more general context, and particularly in business, actionable refers to something that can be acted upon. That meaning is distinct from the meaning in a legal context of being something that invites a law suit (action). Actionable intelligence that helps a company get an advantage in the marketplace is sometimes referred to as competitive intelligence.