Crossword puzzle clue "law gp that now only uses horses for ceremonial events"

Law gp. that now only uses horses for ceremonial events

1950s-'60s hit with the lyric "Ah, you made me love you / Now, now, now, now your man is come"

Ceremonial events

Events for horses and cars

Place for sports events involving horses or cars

Number system that uses only 0 and 1

It uses only the 12 letters A, E, H, I, K, L, M, N, O, P, U and W (like eight long answers in this puzzle)

City whose language uses only the 12 letters found in this puzzle