Whilst clinching you opponent, would it be possible to fake a knee and sneak you leg over the shoulder and take the back? 
I'm trying to picture what you mean by leg over the shoulder to take their back
Carrtrouble - I'm trying to picture what you mean by leg over the shoulder to take their back
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Go watch ranyi yaha vs mark hominik
JustDOit -so many clinch positions. be specific
Sorry, I should of said Muay Thai clinch so whilst pulling the head and neck forward
Duck-unders, slide-bys, throw-bys, and drags.
Hurricanrana IMO.
Honestly, go for the flying triangle if you've got the leg over the shoulder whilst jumping from a Thai clinch. 
wiggum - Duck-unders, slide-bys, throw-bys, and drags.
This guy is correct
Don't know how it would be possible the the Plum, then again I know shit about the clinch. Maybe if you had one underhook and kinda snuck your same leg around, you could transition. Or maybe... Fuck, I have no idea.
Its happened numerous times in the UFC already.
Also, taking someone's back is technically still a "clinch." You're just clinching from behind. ;)
Last night I went for a Uchi-Mata got countered and slid around to the guys back if that counts.
To add to what wiggum said, all of those are similar to taking someone's back from guard as well, esp arm drags. The duck under is imo the easiest and most bread n butter way in wrestling to do this.
Wow. You BJJ cargo cults should get out more and learn other arts.
Throw by, snapdown, FHL, arm drag, slide by, duckunders, you know....stuff you learn in your FIRST year wrestling.