The public should be 'clued in' to what's happening. [=should be told about what's happening]
He doesn't have a 'clue' when it comes to fixing cars. [=he knows nothing about fixing cars]
He's totally 'clued in on' [=he knows a lot about] the latest computer developments.
(..) or other. She's from UKN. You press? Yes. There goes your RTS Award. There must be something. There's nothing there, Mike. There'll be a clue. We've done all we can. You rescued mannequin. I'm sorry, Michael... Fuck off, Julian! past three. We're out of time. (..)2011 TvShow: Black Mirror Title: The National Anthem Season: 1 Episode 1