Answer:

TEETER

Answer	Crossword Clue
TEETER	Half a playground unit?
TEETER	Waver on the brink
TEETER	Sway unsteadily

TEETER	Have trouble balancing
TEETER	Wobble
TEETER	Rock
TEETER	Sway
TEETER	Be unbalanced
TEETER	Seesaw
TEETER	Falter on your feet
TEETER	Half of a seesaw?

TEETER	Live on the edge?
TEETER	Waver
TEETER	Falter on one's feet
TEETER	Balance unsteadily
TEETER	Be precariously poised
TEETER	Look about to topple
TEETER	Ride a seesaw
TEETER	Move unsteadily

TEETER	Be on the brink
TEETER	Rock on the edge
TEETER	Balance precariously
TEETER	Be unsteady
TEETER	Be about to topple
TEETER	Show uncertainty
TEETER	Walk unsteadily
TEETER	Take wobbly steps

TEETER	Perch precariously
TEETER	Vacillate.
TEETER	Jiggle.
TEETER	Seesaw.
TEETER	Balance.
TEETER	Fluctuate.
TEETER	Go up and down.
TEETER	Seesaw motion.

TEETER	Waver uncertainly.
TEETER	Waiver.
TEETER	A seesaw.
TEETER	Waver.
TEETER	Playground gear.

Crossword

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