1: Take out former pamphlet? (7)
2: Saw grey captive strutting (9)
3: No spot for weather forecast before snow approaches (5)
4: Hazardous emanation from river used by a crime boss (5)
5: Hobo accepts employment at a home on the water (9)
6: These people don't know 'Cats' song I arranged (9)
7: Instrument on top of tree or shrub (5)
8: Grass present round container (7)
13: Ill-conceived encore run for Edward VIII, say (9)
14: Sailor Paul in oilcloth (9)
15: Fruit taken in in inn (9)
16: Popular book impounded by British police after revolution (7)
17: Grass surrounds cask, newly calibrated (7)
18: Chump getting past in chasm (5)
19: Maverick starting to buck in wind (5)
20: Loud den has style! (5)