what is meant by the phrase further declaratory and restrictive clauses

Answer 1

Are you referring to the preamble to the Bill of Rights?

If so, this phrase is simply speaking of the Bill of Rights, a later addition to the United States constitution. Put simply, the founding fathers wanted to lay out even more guidelines to protect the people of the United States. Lets break the phrase down word-by-word:

1. Further clauses - They wanted to add even more requirements than what were simply in the Constitution to guarantee certain rights. This became the Bill of Rights.
2. Declaratory clauses - Clauses that declare or give rights. For example, the sixth amendment declares, or gives, the right to a speedy trial for all Americans.
3. Restrictive clauses - These clauses restrict the United States from taking away certain rights from Americans. For example, the United States government is restricted from making a law that takes away freedom of speech or freedom of religion, according to the first amendment.

I hope this helped. Please let me know if you have any more questions.