Leave while an orchestra is performing (7)
I believe the answer is:
abandon
'leave while' is the definition.
'abandon' can be an answer for 'leave' (to abandon is to leave or desert). I am unsure of the 'while' bit.
'an orchestra is performing' is the wordplay.
'an' becomes 'a'.
'orchestra' becomes 'band' (large musical group).
'is performing' becomes 'on' (as in being on stage).
'a'+'band'+'on'='ABANDON'
Can you help me to learn more?
(Other definitions for abandon that I've seen before include "Desert, strand" , "Evacuate; desert" , "Desert; give up (action)" , "ditch" , "Completely give up; desert" .)