Nestlé chocolate bar

AERO

This bubbly treat shares its name with a lightweight, air-filled confection.

This clue is a straightforward definition where "Nestlé chocolate bar" directly points to the answer. AERO is a well-known Nestlé chocolate bar famous for its bubbly, aerated texture, which makes it light and crispy. The name itself hints at the air pockets inside, tying back to the product’s unique feature. No wordplay or tricks here—just a simple brand reference.