1: Actor works on two dialects (5,8)
2: Revolver pointing up and down (7)
3: Beat it and ran, for example, with Girl Scout ingredients (9,4)
4: Happy faces disturb economist (9)
5: We turned up with endless Irish pitchers (5)
6: I'd party wildly after hitting this? (3,4)
8: Reformed drinker helps a water distributor (9,4)
9: Shredded chad, he decrees, is one ingredient (7,6)
13: Took exception to insult and discharged editor (9)
15: Debate again, coming from behind and vaguely in the middle (7)
17: It's a plain pastry with a serving of raspberry and some light stuff (7)
19: She used to be called Celia (5)