Doctor had scrap for emergency shelter (5,3)
I believe the answer is:
crash pad
'emergency shelter' is the definition.
(somewhere to sleep in an emergency)
'doctor had scrap' is the wordplay.
'doctor' indicates anagramming the letters.
'had'+'scrap'='hadscrap'
'hadscrap' anagrammed gives 'CRASH PAD'.
'for' acts as a link.
(Other definitions for crash pad that I've seen before include "temporary place to sleep" , "doss house" , "Temporary basic accommodation (slang)" .)