Top came spinning (4)
I believe the answer is:
acme
'top' is the definition.
('acme' can be a synonym of 'top')
'came spinning' is the wordplay.
'spinning' indicates an anagram.
'came' is an anagram of 'ACME'.
(Other definitions for acme that I've seen before include "Pinnacle" , "Highest point (of something)" , "Summit, crowning point" , "Height of perfection" , "Point of maximum development" .)