UnScramble this Word: a i n s a c t z?

Questions

What sport did Edward Greeves play well enough to win the first Brownlow medal in?

What's played at Wembley Stadium every May?

What game became popular aboard ocean liners during the nineteenth century?

What Melbourne suburb is home to Victorian Lawn Tennis Association courts?

What racehorse of the 1920s was so hopeless that its name has become a term of derision?