Crossword puzzle clue "tough puzzles"

Here are the possible solutions for tough puzzles clue

Answer
Clue
Relevancy
metas
Clue
Movies about movies, or puzzles within puzzles, in modern slang
Hidden puzzles within puzzles (like the one in this crossword)
posers
Clue
Tough puzzles
Definition
POSER, one that poses
stumpers
Clue
Tough puzzles
abele
Clue
Popular poplar in puzzles
Poplar popular in puzzles
Definition
(Dutch) the white poplar tree
acorn
Clue
Squirrel's staple [don't miss great indie puzzles from avxwords.com! subscribe today!]
Definition
the fruit of the oak tree
across
Clue
Down's opposite, in puzzles
Definition
from one side to the other

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