Conditions in the orchestra? (7)
I believe the answer is:
strings
I believe this is a double definition.
'conditions' is the first definition.
(I have seen 'Undesirable conditions' mean 'strings' so perhaps 'conditions' could also mean 'strings')
'the orchestra?' is the second definition.
(thesaurus)
'in' acts as a link.
(Other definitions for strings that I've seen before include "Lengths of wire etc on a musical instrument" , "Section of an orchestra that plays violins, cellos" , "Cords" , "Just; trade exhibition" , "Undesirable conditions" .)