Answer:

wisp

Answer	Crossword Clue
WISP	Fleeting trace
WISP	SmaIl bunch of straw
WISP	Thin tuft

WISP	Bit of smoke
WISP	Puff
WISP	Curl of smoke
WISP	Smoky remnant
WISP	Trace of smoke
WISP	Trace over a chimney
WISP	Smoke trace
WISP	Strand, as of hair

WISP	Trace
WISP	Thin puff
WISP	Thin trail of smoke
WISP	Thin curl of smoke
WISP	Thin smoke trail
WISP	Will-o'-the-...
WISP	Bit of hair
WISP	Small handful, as of straw

WISP	Streaky emanation
WISP	Tendril
WISP	Thin strand
WISP	Puff of smoke
WISP	Stray strand
WISP	Faint trace
WISP	Thin streak, as of smoke
WISP	Bit of a smoke screen?

WISP	Merest trace
WISP	Small tuft
WISP	Streak of smoke
WISP	Cigar emanation
WISP	Thin reed, as of smoke
WISP	Will-o'-the- ...
WISP	Thin streak
WISP	Finger of smoke

WISP	Smidgen of smoke
WISP	Will-o'-the-..
WISP	Small bundle of straw
WISP	Slender trace
WISP	Paltry puff

Crossword

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