Wild praise of the old country (6)
I believe the answer is:
persia
'the old country' is the definition.
(historical term for Iran)
'wild praise' is the wordplay.
'wild' is an anagram indicator.
'praise' with letters rearranged gives 'PERSIA'.
'of' acts as a link.
(Other definitions for persia that I've seen before include "Old Iran" , "Old land" , "Aspire to this old country" , "Old name for country at 25 Across" , "Former name of Iran" .)