Enter a clue or pattern or both:
The Clue
Jacket material (6 letter answer)
The Answer
BLURBS
Tags
Notes
The answer BLURBS is so rare that it appears less than once every 2500 puzzles.
Definition
BLURB as a noun:
1. (endorsement, indorsement, blurb) = a promotional statement (as found on the dust jackets of books); "the author got all his friends to write blurbs for his book"