Man crazy about the country song (6)
I believe the answer is:
anthem
'country song' is the definition.
'anthem' can be an answer for 'song' (anthem is a kind of song). I am unsure of the 'country' bit.
'man crazy about the' is the wordplay.
'crazy' indicates an anagram.
'about' means one lot of letters goes inside another.
'man' anagrammed gives 'anm'.
'anm' enclosing 'the' is 'ANTHEM'.
Can you help me to learn more?
(Other definitions for anthem that I've seen before include "The man for a rousing song" , "Solemn song" , "One for doomed youth" , "National tune" , "Church choral piece" .)