Better spinner (3)
I believe the answer is:
top
This clue is a double definition.
'better' is the first definition.
(I've seen this in other clues)
'spinner' is the second definition.
(something that spins)
(Other definitions for top that I've seen before include "Highest point or position" , "Acme or apex" , "Toy; garment" , "Better" , "Children's toy" .)