1 Across, Slept outside and brought back book (9)
9 Across, Avi, a weighty three - quarter, perhaps would be best off with a low one (6,2,7)
10 Across, Pitt going across museum with nothing on, showing great self - confidence (7)
11 Across, Excited by the fireplace (7)
Compiler - ALCHEMI
Many Thanks