I'm a bit late on this, but I've been so offline since the news broke that she'd passed away. I wanted to get this all down in some form, and I'm skipping the obvious inclusions like Merry Christmas Maggie Thatcher, from the Billy Elliot musical, and you can find awesome playlists by Brits in places like The Guardian and NME. But here's my (all pop, no punk, lots of Red Wedge supporters) list:
Blow Monkeys: Out With Her
Aztec Camera: Good Morning Britain
Elvis Costello: Shipbuilding (about the Falklands) and here's a gorgeous cover by Hue & Cry (oh, Patrick, I still swoon). Also their 1987 smash Labour of Love, where they harken back to Maggie as EdMin and get splashed with milk, a lot.
I have to end this with a 1987 piece I remember reading in Smash Hits at the time, where their Tom Hibbert interviewed Maggie Thatcher. The Guardian reprinted it yesterday, and it's a must read look 25+ years back in time.