Repaired sitar crack with such great skill (8)
I believe the answer is:
artistry
'great skill' is the definition.
(I've seen this before)
'repaired sitar crack with' is the wordplay.
'repaired' indicates an anagram.
'crack with' becomes 'try' (I've seen this in other clues. I am not sure about the 'with' bit.**).
'sitar' is an anagram of 'artis'.
'artis'+'try'='ARTISTRY'
'such' acts as a link.
(Other definitions for artistry that I've seen before include "Creative flair" , "Skilled workmanship" , "Creativity" , "Genius" , "Superior skill" .)