Excel list item automatically generates a new list

Hi!

Hoping someone can help ;D

In Cell A1 there is a list called "clothing" (a drop down box). In the list you can choose "T-shirt" or "Sweatshirt"

2 other lists have been created called T-shirt (containing "Crewneck" and "V-neck"), Sweatshirt (containing "Crewneck", "V-neck" and "Hoodie").

It would be great that when T-shirt is chosen in the A1 list, that A2 is automatically populated with the "T-shirt list".

Can anyone help?