1: Outcasts return will elicit disgust (5)
2: Birth of Wilder sibling (7)
3: Oddly, derros wont die in water! (5)
4: Earthenware bowl eventually replacing fragment of prehistoric drawing (7)
5: Canadian water ordered for regal tea-break (5,4,4)
6: Observed, like hot tea? (7)
7: Archaeopterix? Maybe I err badly (5,4)
9: Leo, wealthy, wig awry, looking awfully old! (6,4,3)
13: A muskmelon or cola nut pa sliced (9)
15: Lament the first person heard in good judgment (4,3)
16: Again send out note describing Susie misbehaving (7)
17: Amassing gold in confidence trick (7)
20: German painter in a southern state (5)
21: Monsieur is immersed in unspecified French river (5)