Virtuoso well adrift around end of tutti (7)
I believe the answer is:
soloist
'virtuoso' is the definition.
(thesaurus)
'well adrift around end of tutti' is the wordplay.
'well' becomes 'so' (both can mean extremely).
'adrift' becomes 'lost' (I can't explain this - if you can you should believe this answer much more).
'around' is an insertion indicator.
'end of' suggests the final letters.
The final letter of 'tutti' is 'i'.
'lost' placed around 'i' is 'loist'.
'so'+'loist'='SOLOIST'
Can you help me to learn more?
(Other definitions for soloist that I've seen before include "maybe a vocal type" , "Individual performer" , "Individual musician" , "Single performer" , "Virtuoso player" .)