We don't need any clarification

. The size has nothing to do with mass. It'd be highly logical to infer that its a gas giant, because gas expands to higher volumes more easily with heat. The volume has to do with inflation due to its extremely close orbit to the star. I wonder what it would look like when the star touches it

if it has the right composition it could explode in a fire ball!

If it is less heavy and less dense it's strange that it remains in orbit without bowing up.
If it had the right composition it wouldn't exist now because it's so near that would have already exploded