Enter a clue or pattern or both:
The Clue
Stock markers (7 letter answer)
The Answer
TAGGERS
Tags
Notes
The answer TAGGERS is so rare that it appears less than once every 2500 puzzles.
Definition
TAGGER as a noun:
1. someone who assigns labels to the grammatical constituents of textual matter
2. someone who appends or joins one thing to another; "a theory that was simply added on by some anonymous tagger"
3. (tagger, tagging program) = a computer program that attaches labels to the grammatical constituents of textual matter