"It's a clew," he said, but he spoke slowly and thoughtfully.
I asked, astonished at Jim's behavior, and anxious for some clew by which to solve its mystery.
I have followed up every sort of clew I have transferred a dozen men.
Of Keane not a trace could be discovered; nor could any clew be obtained as to his companion.
The only clew we have to the identification of the missing money were two boxes of Mexican doubloons.
So that you advise me to open his pack and see if I can find a clew to him.
He has grasped his clew; and, following it, presses bravely on.
"Up to this moment you have given me no clew to it," said Sir Stafford, with a smile.
Was the clew to the mysterious disappearance of the writing to be found here?
I know they do this; and can you give me no clew, however faint, to guide me?
"ball of thread or yarn," northern English and Scottish relic of Old English cliewen "sphere, ball, skein, ball of thread or yarn," probably from West Germanic *kleuwin (cf. Old Saxon cleuwin, Dutch kluwen), from Proto-Germanic *kliwjo-, from PIE *gleu- "gather into a mass, conglomerate" (see clay).