I wouldn't. I don't sexualize humans younger than myself.
It might be good fun, but it could spoil the family relationship if your daughter finds out - and she will.
Imagine if she tells your wife?
VERY carefully. VERY slowly. As Herbert wrote: "Beginnings are such delicate times."
I like having younger friends because it helps me stay in the loop but I'm done dating anyone who is more than 3-4 years younger. Been there/done that. It was fun but.....
Counseling would be a good first step.
Have to agree, the OP is asking for trouble. Also must confess that in recent years, on the wrong side of sixty, I've managed to 'engage' a couple women in their late twenties. They were sexually adventurous, had multiple partners/FWB. It did not take much effort to persuade them. Mostly I acted the gentleman, and tactfully grateful.
As a girl who has been seduced by older men I would say don't be creepy. He her friend and mentor. Give her complements not just on her looks but on her as a person.
Buy her gifts to show your interst, doesn't have to be big just things to let her know you care for her.
Talk to her as an adult. Don't treat her like a kid in conversations.
Flirt and tease her.
And ask her out and do things guys her age won't or can't afford
As a young woman we want to be treated as a woman. Not a girl