Answer:

withit

Answer	Crossword Clue
WITHIT	Hip
WITHIT	Hardly nerdy
WITHIT	Trendy

WITHIT	Cool
WITHIT	In the know
WITHIT	On the beam.
WITHIT	Clueless-not!

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.