I was in charge of foreign land (4)
I believe the answer is:
iran
'foreign land' is the definition.
(I've seen this before)
'i was in charge' is the wordplay.
'was in charge' becomes 'ran' (I've seen this before).
'i'+'ran'='IRAN'
'of' is the link.
(Other definitions for iran that I've seen before include "Middle Eastern country" , "Country of western Asia" , "Persia some time ago" , "Middle East country" , "Country that was Persia" .)