Answer: dollup

AnswerCrossword Clue
DOLLUP

Dress to the nines

DOLLUP

Dress showily: Slang.

DOLLUP

Dress with care: Slang.

DOLLUP
Put on one's best bib and tucker.
DOLLUP
Get dressed in Sunday best
DOLLUPDress all fancily
DOLLUPDress extravagantly