"clear mind" or "clear idea"

[fang2008]

What's the meaning of "clear mind"?

Can I say:

Because of your suggestion, I have a clear mind on how to do the work.

or:

Because of your suggestion, I have a clear idea on how to do the work.

Or anything better than that?

Thanks

[Soup]

Clear idea (about).

[David L.]

Because of your suggestion, I now have a clearer idea of how to do the work.