Xian, it's not a brick wall, you still have the option of calling an extraordinary meeting with an agenda compiled by those calling it if the chair refuses to do so. What you need for that to happen is the prerequisite number of Cllrs required to call an extra ordinary meeting. That provision is exactly suited to the type of circumstance you describe where a chair and clerk seek to impose their personal will upon a council which, collectively, has a different will. What you need for it to work is enough Cllrs that agree to call the extra meeting. If you don't have that, it won't work but similarly, if you don't have that then it is likely that there is not a 'general consensus' of the council anyway.