I've been all over this place in the last hours, and I haven't found a clue.

"My service has found clues to some activity in deep space," he said.

He felt like a detective who has found a clue.

And now we're here, he's found a clue to something.

But he found a revealing clue in the water itself.

Some analysts found clues to the future of the company in the action by the 18-member board.

I didn't gather from your report that you had even found a clue.

I registered all the information as if from a great distance because I'd found a clue.

Another man had found a clue to the five ivory boxes.

If it should chance they were not, he had probably found a useful clue to the thief.