I have a vocal track that was very-very close miked to capture an almost whispered vocal. Everything sounds pretty good--matter of fact, the mix is so clear thus far that the little mouth sounds are actually cutting through the mix as clicks or crackles.  I can't get the vocalist back, and I like the way the compression settings and eq are helping the vocal sit.  So, I'm wondering if there is either anything within Sonar, any techniques to try, or any free plug ins that might do the trick.

You might try careful and surgical slip editing on the lip smacks after splitting the clips where necessary.
 

bitman
You might try careful and surgical slip editing on the lip smacks after splitting the clips where necessary.
 

^^^^^^^^^^^^
 
Splitting plus cross-fades sounds like a good option.  Tedious perhaps, depending on how many there are, but probably the cleanest method with the most control.

Thanks...I actually found that the specific delay that I was using was exaggerating the noise. I switched delays and the problem is much better.