Some homeless GI driving over to find accommodation (4)
I believe the answer is:
digs
'accommodation' is the definition.
(student accommodation)
'some homeless gi driving over' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'over' shows that the letters should be reversed in order.
'sgid' is hidden in the letters of 'homeless gi driving'.
'sgid' backwards is 'DIGS'.
'to find' is the link.
(Other definitions for digs that I've seen before include "mines" , "In brief, archaelogical excavations" , "rented accommodation" , "Accommodation - makes a hole" , "Enjoys" .)