Clerks are not lawyers.
I believe the “clerks” for Supreme Court Justices are indeed generally young attorneys.
Clerks are not lawyers.
Clerks are not PRACTICING lawyers, perhaps, but absolutely are lawyers.
It would be virtually impossible to obtain a SCOTUS clerkship without being admitted to the bar and licensed to practice law in at least one state.
Yes, they usually are, and in this Elizabeth Deutsch certainly was.
https://en.wikipedia.org/wiki/Law_clerkA law clerk or a judicial clerk is an individual—generally an attorney—who provides direct assistance and counsel to a judge in making legal determinations and in writing opinions by researching issues before the court. Judicial clerks often play significant roles in the formation of case law through their influence upon judges' decisions.[1][2] Judicial clerks should not be confused with legal clerks (also called "law clerks" in Canada), court clerks, or courtroom deputies who provide secretarial and administrative support to attorneys and/or judges.