These are a few creases that need ironing out:-
1 Down - "Save our NHS", say hospital nurses to Chronicle" (6) S-O-A-
I can only think of "slogan".
22 Down - "Part of snooker's scoring system given a makeover?" (6)
-E-O-E
Also, parsing needed for 21 Down, the clue for which is "The state in which old police chief's bearing left one" . The answer appears to be LIBERIA.