I agree with Cerasus in his post at 40.
I didn't consult any dictionaries, until I looked for confirmation to show you...re my comment about Bradford's.
I enjoyed the puzzle!
Evidently I am in a minority in preferring to solve crosswords from the clue without having to guess from crossers and retrofit the def. Thanks for the comments.
With all due respect, Quocunque, I DID get my answer from the clue,.....
parsing it as I went.....
schmooze = circulation (def)
Schm (altz) - mush
ooze - percolate
What could be simpler?