Packed as a precaution? (2,4)
I believe the answer is:
in case
This clue is a double definition.
'packed' is the first definition.
(I've seen this before)
'as a precaution?' is the second definition.
(just in case)
(Other definitions for in case that I've seen before include "For fear that" , "Packed" , "for emergency" , "As a precaution" , "In order to allow for eventualities" .)