1 Dot adopts English regime (4)
2 Key passage heard (4)
3 These spears when thrown slice poor crabs (8)
4 Sun in dull place (6)
5 Hippocampus - a rose she cultivated (3,5)
6 Mail arrives describing member of educational establishment (6)
7 Trained in America to cram head according to Spooner (8)
8 Reminder for politician to note rule (8)
11 Forward libertine takes last of pot (5)
15 Judge again research about fools (8)
16 At fault, gifted copper first arrests Lord Provost (8)
17 Polish, say, found in eastern spear (8)
19 I vote to support one on behalf of final addition (8)
20 Alien eats endlessly old bird (5)
22 Boils we hear may be black and blue (6)
24 Restoration theatre character (6)
27 Critical account I read, finally (4)
28 Margin of a book, not the left or right (4)