Elon Musk's big house party in Colditz? (6,4)
I believe the answer is:
prison camp
'colditz?' is the definition.
I can't tell whether this definition defines the answer.
'elon musk's big house party' is the wordplay.
I cannot quite see how this works, but
'party' could be 'camp' (both can mean a group of people) and 'camp' is found in the answer.
'big house' could be 'prison' (Big House is American slang for prison) and 'prison' is found in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'in' acts as a link.
Can you help me to learn more?
(Other definitions for prison camp that I've seen before include "gulag" , "Stalag perhaps" .)