The Thunderclap spell has a range of 5 feet and states (emphasis mine):
You create a burst of thunderous sound that can be heard up to 100 feet away. Each creature within range, other than you, must succeed on a Constitution saving throw or take 1d6 thunder damage. […]
The Distant Spell Metamagic states:
When you cast a spell that has a range of 5 feet or greater, you can spend 1 sorcery point to double the range of the spell. […]
Does doubling the range of Thunderclap also increase its area of effect or do something else entirely?