Greek hero puts article to varied uses (7)
I believe the answer is:
theseus
'greek hero' is the definition.
(I've seen this before)
'article to varied uses' is the wordplay.
'article' becomes 'the' (the 'definite article' part of speech).
'to varied' is an anagram indicator.
'uses' is an anagram of 'seus'.
'the'+'seus'='THESEUS'
'puts' is the link.
(Other definitions for theseus that I've seen before include "Athenian king" , "Shakespeare's Duke of Athens" , "Occasion when public may visit (eg, school)" , "Ariadne's abandoner" , "ancient Greek" .)