Rcm if registered under composition scheme

Hello,

1.) Suppose a dealer registered under composition scheme and pay rent to individual of the shop. Is the dealer need to deduct GST under reverse charge machenism and if yes then will the dealer able to take the credit of the same?

2.) If dealer purchases from a URD will he also required to deduct GST under reverse charge and if yes then also is he able to take credit of the same? As normal GST credit is not available to the dealer....??

Thank You