Article in temporary shelter for occupant (6)
I believe the answer is:
tenant
'for occupant' is the definition.
(tenant is a kind of occupant)
'article in temporary shelter' is the wordplay.
'article' becomes 'an' (indefinite article).
'in' indicates putting letters inside.
'temporary shelter' becomes 'tent' (I've seen this in another clue).
'an' placed into 'tent' is 'TENANT'.
(Other definitions for tenant that I've seen before include "Renting occupant" , "Lessee" , "Occupant of rented property" , "Lodger" , "Leaseholder" .)