Ecstatic hour in hip-hop disco, dancing around (9)
I believe the answer is:
rhapsodic
'ecstatic' is the definition.
(I know that ecstatic can be written as rhapsodic)
'hour in hip-hop disco dancing around' is the wordplay.
'hour' becomes 'h' (abbreviation).
'in' means one lot of letters goes inside another.
'hip-hop' becomes 'rap' (I've seen this in another clue).
'dancing' indicates anagramming the letters.
'around' indicates putting letters inside.
'h' put into 'rap' is 'rhap'.
'disco' is an anagram of 'sodic'.
'rhap' put into 'sodic' is 'RHAPSODIC'.
(Other definitions for rhapsodic that I've seen before include "Like an irregular and emotional composition" , "Expressing delight" , "Ecstatic, extravagantly enthusiastic" , "of utter delight" , "Freely emotional" .)