Husband into odd side of barn dance (6)
I believe the answer is:
rhumba
'dance' is the definition.
(I know that rhumba is a more specific form of the action dance)
'husband into odd side of barn' is the wordplay.
'husband' becomes 'h' (abbreviation).
'into' is an insertion indicator.
'odd side of barn' becomes 'rumba' (I can't explain this - if you can you should believe this answer much more).
'h' placed inside 'rumba' is 'RHUMBA'.
Can you help me to learn more?
(Another definition for rhumba that I've seen is " Latin dance (alt sp)".)