Adjective
clued in (comparative more clued in, superlative most clued in)
(US, informal) Synonym of clued up (“knowledgeable about a topic or situation; possessing the facts”)
clued-in (comparative more clued-in, superlative most clued-in)
(colloquial) Informed.
clued-in
The art world can be very intimidating because it's just so vast. You talk to people who are really clued in to all the young artists and coming into it you're never going to be able to catch up immediately, even though there's pressure to. Daniel Radcliffe