be clued in

be clued in

To be familiar with or aware of the particulars of a situation, especially through inference, previous knowledge, or by being privy to inside information. Usually followed by "on," "to," or "about." By the end of the week, everyone was clued in on the reason for the professor's sudden absence from class. You need to be clued in to the way people behave in social situations!
See also: clue
Farlex Dictionary of Idioms.
See also:
  • clue
  • get clued in (to something)
  • in/out of the loop
  • watch for
  • watch for (someone or something)
  • particulars
  • the particulars
  • aware
  • be aware of (something)
  • recollect (oneself)
References in periodicals archive
He cites financial services, telecommunications, health care, energy and natural resources -- industries with substantial funding needs and therefore a reason to be clued in to banks' needs.
Tough Times/Tougher Banks: Bank consolidation and the recession have made it more difficult for companies to find lenders ready and willing to give them money. (Banking)