Express Crusader 20/8

[yesterday]

8d Further connection with Eastern coordinate (6) B?y?s
(unsure of letters)
21a Avert shock treatment, having first fled in haste (7)
??f is?e?t
22a Issue of rebellion is a non-starter (7) E?i?i??
20d Coming to notice an opening (6) ???e?t
16d Rants about pet being loose in part of church (8)
?r???e?t
Could you please explain answers, Many thanks.

[Jumbuck]

21a DEFLECT - anag of fled + ECT (shock treatment)

22a EDITION - rebellion = sedition, non-starter => remove 1st letter

20a ADVENT - notice = ad, opening = vent

16 TRANSEPT - anagram (indicated by 'about') of rants + anagram (indicated by 'being loose') of pet

[mazie]

8d I put Beyond N comes from 13a Regimen

[yesterday]

Many thanks to you both.