As far as I know the Skyraider was not cleared for Sidewinder but, it was cleared for the AGM-12 Bullpup AGM. Mind you this would have been the later models of the Skyraider (AD-5/A-1E, AD-6/A-1H, and AD-7/A-1J) only. But, being cleared/authorized to carry is one thing. Actual missions where Bullpup was used operationally has to the best of my knowledge never been documented.