Shame to waste a thread, especially as I can't finish this one today and need to go out soon :-)
1d Piano music over mature rock music (6) G?R???
11a Pub with posh lady as host in alleyway (6) ??N?E?
15d Spike one small drink, getting up when man swallows (8) ?I?L?G??
25a Out to lunch, stagger back (4) ??T?