Country bumpkin leading soldier carried by pack animal returning (7)
I believe the answer is:
belgium
'country' is the definition.
(Belgium is an example)
'bumpkin leading soldier carried by pack animal returning' is the wordplay.
'leading' suggests taking the first letters.
'soldier' becomes 'gi' (government issue or general issue).
'carried by' is an insertion indicator.
'pack animal' becomes 'mule' (I can't justify this - if you can you should give a lot more credence to this answer).
'returning' shows that the letters should be reversed in order.
The first letter of 'bumpkin' is 'b'.
'mule' written backwards gives 'elum'.
'gi' placed within 'elum' is 'elgium'.
'b'+'elgium'='BELGIUM'
(Other definitions for belgium that I've seen before include "Country of Europe" , "One of the Low Countries" , "Glib emu to be found in the country" , "European nation" , "Home of EU headquarters" .)