1a) Frivolous sketch misrepresenting this. (8)
4d) try to get crude oil into small city, not terminal (7)
13a) 20 directors watched on the boundary at Lord's? (10) - 20 is abut
23a) More work by Banksy for study outside college? (10)
31a) 10 casing new hotel for TV fundraiser. (8) - 10 is Play Up?
Apology for no letters. All help much appreciated.