Possible Clues:

• In part, Christian Gershwin rubs people up the wrong way
• Brings to the boiling point?
• What are they doing at the end of 12 across?
• Sang about 'er but only annoys 'er
• Tees off
• Arouses wrath in
• French city is seriously annoying
• Maddens
• I hope this crossword does not do this to you
• Gets annoyed and risks ignoring leader