Myth associated with the German songs (6)
I believe the answer is:
lieder
'songs' is the definition.
(lied is a kind of song)
'myth associated with the german' is the wordplay.
'myth' becomes 'lie' (I've seen this in another clue).
'associated with' says to put letters next to each other.
'the german' becomes 'der' ('the' in German).
'lie'+'der'='LIEDER'
(Other definitions for lieder that I've seen before include "German Romantic songs for solo voice" , "[COMPOSITION] s" , "Relied on German song genre" , "songs by Schumann?" , "Relied on German song (6)." .)