Last few still stuck on:
a - Before you bury someone, proceed in a crazy trance (10) best so far Canterbury - but not sure if 'bury' would be in clue too
b - HARK! A SON (anag) (8) I've 'Noah's Ark' but that would be 5,3
c - Confused man in Los Angeles perhaps? (8)
d - Non-U fount of all knowledge (4)
e - A pipe may help this lay official in a parish church (12) - can't see how either churchwarden o sequestrator fit
f - No red Americans worship in here (5,4)
g - You might have the highest aspiration in this Cathedral (9)
h - A metal, a bird and a place of worship (7,5)
Cheers x