Answer: FIRSTAMENDMENT
The answer FIRSTAMENDMENT has 6 possible clues. See the results below.
Possible Clues:
- Source of the freedoms found at the ends of this puzzle's four other longest answers
- Freedom of speech guarantor
- Protector of free speech
- Part of US law -- revised its draft with people twice intervening
- Rifts could result from this initial extension of Constitution
- Where the freedoms that end 20-, 35- and 41-Across are found