Cheer coming from old men in dance (6)
I believe the answer is:
hooray
'cheer' is the definition.
(I've seen this before)
'old men in dance' is the wordplay.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'men' becomes 'or' (I've seen this in other clues).
'in' is an insertion indicator.
'dance' becomes 'hay' (type of country dance).
'o'+'or'='oor'
'oor' put inside 'hay' is 'HOORAY'.
'coming from' is the link.
(Other definitions for hooray that I've seen before include "Yippee!" , "Cheer" , "Hurrah" , "Shout of joy (for Henry?)" , "Exclamation of joy or victory" .)