Maybe he would add something to the picture to offer further clues as to its meaning.

Perhaps we will find some further clue as to how this was accomplished.

A careful search of the area turned up further clues.

The German master's room and effects gave no further clue.

He would have gone without a further clue, but for the comment of a detective present.

All further clues would be found in one of these 30 buildings, a warning noted.

A further clue could be the sheer size of the dinosaurs.

If you have not already gained inspiration of your own, I may be able to supply a further clue.

I'd suggest we analyze the tapes we've got for further clues.

A look at the main documents relating to his later life, and some recent finds, may offer further clues.