n. 1 hint, suspicion, trace, intimation, suggestion, inkling, indication, pointer, lead, tip, tip-off, evidence, information, advice; key, answer, indicator There is no clue pointing to anyone in particular Any clue to the solution of the mystery disappeared in the fire.
v. 2 clue someone in or Brit also up. hint, suggest, imply, intimate, inform, advise, indicate She clued us in as to who might have sent the letter