Answer:

littlest

Answer	Crossword Clue
LITTLEST	The ... Angel
LITTLEST	Like the runt
LITTLEST	Like runts

LITTLEST	Most petite
LITTLEST	"The ... Rebel," S. Temple film
LITTLEST	Least important
LITTLEST	Least large
LITTLEST	Adjective for a runt

Crossword

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