clue

CLUE noun

[ C ] uk/kluː/ us
B2 a sign or a piece of information that helps you to solve a problem or answer a question

улика, подсказка
Police are searching the area for clue s to the murder. I can't remember who wrote it. Give me a clue . not have a clue informal
B2 to be completely unable to guess, understand, or deal with something

не иметь понятия
[ + question word ] I haven't a clue what you're talking about.