Desk, left out with salt during religious teaching in church (10)
I believe the answer is:
tabernacle
'church' is the definition.
(I have seen 'Nonconformist church ' mean 'tabernacle' so perhaps 'church' could also mean 'tabernacle')
'desk left out with salt during religious teaching' is the wordplay.
I cannot really see how this works, but
'left' could be 'l' (common abbreviation) and 'l' is found within the answer.
'salt' could be 'ab' (able seaman - 'salt' can mean a sailor) and 'ab' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
'in' is the link.
Can you help me to learn more?
(Other definitions for tabernacle that I've seen before include "Mormon place of worship" , "Nonconformist church" , "Mormon meeting-place" , "Tent for Ark in Exodus" , "Tent for the Ark of the Covenant" .)