Right, so the definition's tucked away at the end there — for George Bernard Shaw?, since he's famous as an ironist, a writer known for his irony. For the wordplay, "club" gives you IRON (a golf club), then just add IS straight from the clue, and finish with T, which is "perfect" ultimately — i.e. its last letter. Stick IRON, IS and T together and you're at the answer.