Working after turning north, back from Bible belt (4)
I believe the answer is:
zone
'belt' is the definition.
(I know that zone is a type of belt)
'working after turning north back from bible' is the wordplay.
'working' becomes 'on' (e.g. a machine is working or on).
'after' is a charade indicator (letters next to each other).
'turning north' becomes 'z' (I can't justify this - if you can you should believe this answer much more).
'back from' suggests the final letters (the letter at the back of the word).
The final letter of 'bible' is 'e'.
'on' put after 'z' is 'zon'.
'zon'+'e'='ZONE'
Can you help me to learn more?
(Other definitions for zone that I've seen before include "Bitter, pungent" , "One of five belts round the earth" , "District, area" , "Particular area or sector" , "Area subject to restrictions, parking say" .)