One's taken by the dancing, not love (4)
I believe the answer is:
hate
'not love' is the definition.
('hate' is the opposite to 'love')
'one's taken by the dancing' is the wordplay.
'one' becomes 'a'.
'taken by' is an insertion indicator.
'dancing' indicates an anagram.
'the' is an anagram of 'hte'.
'a' put into 'hte' is 'HATE'.
(Other definitions for hate that I've seen before include "Extreme dislike" , "'Unimaginable as ---- in Heav'n': Milton" , "Thoroughly dislike, loathe" , "powerful emotion" , "Detest" .)