Alternatively, case could be made against artist in band (9)
I believe the answer is:
orchestra
'band' is the definition.
(musical band)
'alternatively case could be made against artist' is the wordplay.
I cannot really see how this works, but
'alternatively' could be 'or' and 'or' is found within the answer.
'case' could be 'chest' (both are types of container) and 'chest' is found within the answer.
'artist' could be 'ra' (Royal Academician, member of Royal Academy of Arts) and 'ra' is located in the answer.
No letters remain.
This explanation may well be incorrect...
'in' is the link.
Can you help me to learn more?
(Other definitions for orchestra that I've seen before include "Large group of instrumentalists" , "Musical ensemble" , "Other cars (anag.)" , "Large group of musicians" , "Company of musicians" .)