10-25-2012, 12:00 PM
I agree with Arran, if you can lift the veneer, do so and then re-glue. Failing that, you could clean out the exposed joints using a sharp, thin awl. Sand the wood and save the sanding dust. You could then make up a paste with the glue and dust and fill the cracks. Spraying with a tone lacquer would help make the cracks less visible.