Been looking at these for too long. Inspiration please....
8d, Be ready for time lag (5) --A-T
9d. Taking place on water? Not half (4-7) --m-/A-u-t-c (--m- Aquatic)?
7a. Money from the band (5) B----
20a. Turn back in notorious surroundings being overbearing (8) -R-O-A--