Answer: restain

AnswerCrossword Clue
RESTAIN

Further ebonize

RESTAIN

Touch up old furniture

RESTAIN

Do the deck again

RESTAIN
Color again.
RESTAIN
Dye again.
RESTAINColor anew.
RESTAINAdd varnish
RESTAINFix up, as old floors
RESTAINFinish differently, say