Spinners must accept most of those people bring about complete reversal (4,3,6)
I believe the answer is:
turn the tables
'spinners' is the definition.
Both the answer and definition are plural nouns.
Perhaps they are linked in a way I don't understand?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for turn the tables that I've seen before include "Achieve complete reversal" , "Make a complete reversal" , "Bring about a complete reversal of circumstances" , "Change from losing to winning" , "Gain an advantage from an unfavourable position" .)