n.
a fact or piece of evidence used to solve a crime or that serves to reveal something.
v.
(clues, clueing, clued)
(
clue someone in)
informal inform someone about something.
Phrase
- have a clue
[usu. with neg.]
informal know about something or about how to do something.
Etymology
ME (orig. ‘a ball of thread’, hence one used to guide a person out of a labyrinth): var. of clew.