### Clue: Madonna's son that Harry's hit (first one over 17,19) (5,3,5)
### Answer: MARY’S BOY CHILD 
 ### Explanation: Definition: Harry's hit,first one over 17,19
 MARY(the Madonna in the Bible)'S BOY CHILD(son).
Answer: Harry Belafonte's hit song, the first #1 in Britain to have a playing time of more than 4 minutes(answer to 17 across, 9 down).