Answer: TIPPYTOE

AnswerCrossword Clue
TIPPYTOETrying to look taller, informally, with "on"
TIPPYTOEHow a youngster might watch a parade, with "on"
TIPPYTOEStep stealthily, informally
TIPPYTOEWhat one might sneak out on
TIPPYTOEWhat a small child may stand on
TIPPYTOEWhat a child might stand on
TIPPYTOEWhat a child may stand on
TIPPYTOEMove stealthily
tippytoeto walk on the tips of one's toes, also TIPTOE