Old he-man trained in birthplace (8)
I believe the answer is:
homeland
'birthplace' is the definition.
(thesaurus)
'old he-man trained' is the wordplay.
'trained' indicates anagramming the letters (to train can mean to grow something into a shape).
'old'+'he'+'man'='oldheman'
'oldheman' with letters rearranged gives 'HOMELAND'.
'in' is the link.
(Other definitions for homeland that I've seen before include "Mother country" , "Native soil" , "Original state" , "Native country" , "may be seen on TV" .)