1: Approves punitive measures (9)
2: Wizards covered in liquor and beer...it might be for charity (7, 4)
3: Victor receives this prize literally or decoration (4,5)
4: Most distant area of open land has street on both sides (9)
5: Titan is finally cut short (5)
6: Dodgy queen is tender (5)
7: Starts to actually believe you survived snake pit (5)
11: E.g., told story about cave-men (11)
13: Syria going after nurse involved in overthrow; sticky stuff? (4,5)
14: Crazy to signal a desire for the old days (9)
15: Closely observes public transport viewing problem (9)
18: First-class puzzle originally from Ontario is available (2,3)
19: I had left mule, finally, and right loafer (5)
20: Digs for leads in homicide of the elderly lady (5)