Possible Clues:

• Faultless track, musical talent?
• Something the eight people at 3-, 9-, 28- and 30-Down have all strived for?
• Ideal place for Strauss, a special musical talent
• Musical talent (appreciated by batsmen?)
• Singer's uncommon skill
• Croke Park presumably draws music lovers
• Five-star spiel?
• Flawless proposal, hitting all the right notes
• Ability of note?
• What is appreciated by the players is too good to be true - it leads to pressure and needs to be scratched