I was having a problem with a particular sparring partner who had impressive skill and strength in tying me up in his Thai clinch. No matter my counter, it fed in to his response. I asked my teacher if he had a good response for that. He told me to use the headlock immediately. It worked very well. So far I have had only success using the headlock in response to the Thai clinch and haven't seen a counter response to the headlock at that moment.
I'm wondering if anybody knows a good counter for when you have applied the clinch, and then are caught with one arm inside the basket of a headlock?