Occasion enhanced at the outset with Latin dancing (6)
I believe the answer is:
entail
'occasion' is the definition.
(I've seen this before)
'enhanced at the outset with latin dancing' is the wordplay.
'at the outset' says to take the initial letters.
'with' says to put letters next to each other.
'dancing' indicates anagramming the letters.
The initial letter of 'enhanced' is 'e'.
'latin' with letters rearranged gives 'ntail'.
'e'+'ntail'='ENTAIL'
(Other definitions for entail that I've seen before include "outmoded fashion" , "Involve or require" , "Need" , "settlement of estate" , "Cut" .)