Music expert building material about Bach's final restoration of harmony (13)
I believe the answer is:
rapprochement
'harmony' is the definition.
(thesaurus)
'music expert building material about bach's final restoration' is the wordplay.
I cannot really understand how this works, but
'music' could be 'rap' (musical genre) and 'rap' is present in the answer.
'expert' could be 'pro' (short for professional) and 'pro' is located in the answer.
'material' could be 'heme' (heme is a kind of material) and 'heme' is found in the answer.
'about' could be 'c' (abbreviation for circa) and 'c' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
'of' acts as a link.
Can you help me to learn more?
(Other definitions for rapprochement that I've seen before include "Re-establishment of harmonious relations" , "move towards peace?" , "resumption of friendly relations" , "Renewal of cordial relations" , "Resumption of harmonious relations" .)