Yo-yo coils tangled and others rewound (9)
I believe the answer is:
oscillate
'yo-yo coils tangled and others rewound' is the definition.
I can't judge whether this defines the answer.
'coils tangled and others rewound' is the wordplay.
'tangled' indicates an anagram.
'and others' becomes 'etal' (short for 'et alia', 'and others' in Latin).
'rewound' is a reversal indicator.
'etal' in reverse letter order is 'late'.
'coils' anagrammed gives 'oscil'.
'oscil'+'late'='OSCILLATE'
Can you help me to learn more?
(Other definitions for oscillate that I've seen before include "sway" , "Swing back and forth" , "Swing like a pendulum" , "Move or swing from side to side regularly" , "shake" .)