Aunt is travelling around one country (7)
I believe the answer is:
tunisia
'country' is the definition.
(Tunisia is an example)
'aunt is travelling around one' is the wordplay.
'travelling' is an anagram indicator.
'around' indicates putting letters inside.
'one' becomes 'i' (Roman numeral).
'aunt'+'is'='auntis'
'auntis' with letters rearranged gives 'tunisa'.
'tunisa' going around 'i' is 'TUNISIA'.
(Other definitions for tunisia that I've seen before include "Country which contains the site of Carthage" , "African state" , "country-style" , "Land" , "Somewhere in North Africa" .)