Big church car halted in crash (9)
I believe the answer is:
cathedral
'big church' is the definition.
(I've seen this in another clue)
'car halted in crash' is the wordplay.
'in crash' is an anagram indicator.
'car'+'halted'='carhalted'
'carhalted' with letters rearranged gives 'CATHEDRAL'.
(Other definitions for cathedral that I've seen before include "See 6" , "Car halted badly at the large church" , "See building" , "place of religion" , "St Patrick's in Dublin, say" .)