I agree with Bil that it's probably a natural secretion, but the word "honeydew" is problematic here. Honeydew is the secretion/droppings of aphids, mealies, and other sucking insects. Thus, if it's really honeydew you have a major problem on your hands.
My bad, I doubt it is aphid secretions as they drip off the bugs onto leaves and cause sooty mould etc. Clear beads are plant secretions.