Possible Clues:

• Father Timothy might do the beating over Ulster
• Something making drumming noise in forest? I'm panicking!
• Percussionist's set
• Kettledrums played by one musician in an orchestra
• Orchestral drums (I, not Y)
• It gives Timothy a pain to be forever beating with them
• Do they get the time to beat it?
• Sounds as if they could have Dundrum
• Knock received by most of retiring drummer's equipment
• About one thousand different paint drums