Band has not performed solo in seedy venue? (5,5)
I believe the answer is:
strip joint
'solo in seedy venue?' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.
'band has not performed' is the wordplay.
'band' becomes 'strip' (both can mean a small piece of material).
'has' is a charade indicator (letters next to each other).
'not performed' becomes 'joint' (I am not sure about this - if you are sure you should believe this answer much more).
'strip'+'joint'='STRIP JOINT'
Can you help me to learn more?
(Another definition for strip joint that I've seen is " entertainment venue".)