Answer:

retin

Answer	Crossword Clue
RETIN	...-A (wrinkle reducer)
RETIN	Reapply a coat of metal.
RETIN	Coat anew with metal.

RETIN	Cover again with metal.
RETIN	Plate again with a metal.
RETIN	Resin: Comb. form
RETIN	...-A
RETIN	...-A (acne treatment)

Crossword

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