A successful golf instructor reconnects with his appetite and love of the game, when he agrees to share his round with a younger raw sportswoman.

Round of golf is eighteen holes.

I'm not really sure what "sharing a round" means - playing together, I guess, but what's the timescale - one game? A season?

This sounds like there's going to be a competition here (just a guess) but i can't understand what the golf instructor stands to achieve, his motivation. You have described him as successful, you didn't say he was getting rusty, bored, so what made him lose his appetite in the first place. Then he shares his round with a younger sportswoman - sounds like ACT I, what happens after that or what is likely to happen next?. You should make it more catchy to a potential reader. Right now you haven't given enough description to stimulate interest.