1: So sad coming back, Pops (5)
2: Either way, it's flat (5)
3: A language one may read about (9)
4: Surprised fat southerner heading west to execute media mogul Turner (13)
5: Smells renovated doors (5)
6: To restrain a small child that is not up. (2, 3, 4)
7: Ship's official drinking tea with buyer (9)
9: Charles talked about pictures of sea creatures (6,2,5)
13: Curtailed clothing allowance possibly a revolution factor (4,5)
14: Breaking a vice can't prevent disease (9)
15: They say the headmaster should be guided by this (9)
18: Noisily proclaim British politician to the audience (5)
20: A couple of eerie bears look quietly, and slip away (5)
21: Nasal quality essentially irritates Vera (5)