Old-time dance for which Joe joins some guests (5)
I believe the answer is:
gigue
'old-time dance' is the definition.
'gigue' can be an answer for 'dance' (I've seen this before). I am not sure about the 'old-time' bit.
'joe joins some guests' is the wordplay.
'joe' becomes 'GI' (GI Joe).
'joins' is a charade indicator (letters next to each other).
'some guests' becomes 'gue' (I can't explain this - if you can you should give a lot more credence to this answer).
'gi'+'gue'='GIGUE'
'for which' is the link.
Can you help me to learn more?
(Other definitions for gigue that I've seen before include "Lively Renaissance dance" , "Small symphony orch." , "Lively baroque dance" , "Lively Renaissance/baroque dance" , "dance music" .)