How to correctly pass and then clear QMultiMap?

Question

Qt

There is class A which has QMultiMap. There is also a method that should return data from this multiword, and then clear it in class A, but in the place where I get it, I should be able to use it. I implemented this method like this:

QMultiMap<QString*,QString*>*  getdata()
{
     return &data;
}

I would also like to know how best to clear this dictionary after the transfer.