Answer:

hipness

Answer	Crossword Clue
HIPNESS	Cool cat's quality
HIPNESS	Nerd's lack
HIPNESS	Cool

HIPNESS	Cool character's quality
HIPNESS	Cool state
HIPNESS	Trendsetter's quality
HIPNESS	Cool quality
HIPNESS	Cool factor
HIPNESS	Cool air?

Crossword

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