German songs told a story: let me think (6)
I believe the answer is:
lieder
'german songs' is the definition.
(I've seen this in another clue)
'told a story let me think' is the wordplay.
'told a story' becomes 'lied' (telling stories can mean lying).
'let me think' becomes 'er' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'lied'+'er'='LIEDER'
Can you help me to learn more?
(Other definitions for lieder that I've seen before include "Relied on German song (6)." , "Relied on classical German song" , "songs from Berlin?" , "Musical settings for solo voice and piano" , "Art songs for voice and piano" .)