President in the wilderness? (4)
I believe the answer is:
bush
I believe this is a double definition.
'president' is the first definition.
(I've seen this in other clues)
'wilderness?' is the second definition.
(bush is a kind of wilderness)
'in the' acts as a link.
(Other definitions for bush that I've seen before include "Shrub; hole lining" , "Outback" , "Wild area" , "A shrub or a modern president" , "Scrub" .)