Retire unexpectedly with a tract of land (7)
I believe the answer is:
eritrea
'tract of land' is the definition.
'eritrea' can be an answer for 'land' (African country). I'm not sure about the 'tract of' bit.
'retire unexpectedly with a' is the wordplay.
'unexpectedly with' indicates an anagram.
'retire' anagrammed with 'a' gives 'ERITREA'.
Can you help me to learn more?
(Other definitions for eritrea that I've seen before include "nation" , "It declared its independence from Ethiopia in 1993" , "It achieved independence from Ethiopia in 1993" , "NE African country" , "Eire art (anag)" .)