Over from a spinner (4)
I believe the answer is:
atop
'over' is the definition.
'a spinner' is the wordplay.
'spinner' becomes 'top' (something that spins).
'a'+'top'='ATOP'
'from' acts as a link.
(Other definitions for atop that I've seen before include "Cooker heating element" , "in dominant position" , "on the head" , "Situated on" , "At the summit of" .)