Answer:

lengthen

Answer	Crossword Clue
LENGTHEN	Extend
LENGTHEN	Add to
LENGTHEN	Alter, in a way

LENGTHEN	Prolong
LENGTHEN	Stretch
LENGTHEN	Extend.
LENGTHEN	Command to a tailor
LENGTHEN	Extend, as a hemline
LENGTHEN	Stretch out

Crossword

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