This sounds a bit of a complex one and without a full understanding of all the facts, a definative reply is difficult. However the following points may be relevent. The Clerk cannot convene a meeting, only the Chair (or two members) can upon giving three clear days notice. No expenditure should be incurred or committed to unless such notice is given. This is a legal requirement and the standing orders cannot limit this. Any decision taken without such notice is capaple of being challenged and if done so successfully, will be declared illegal. Note however that the council can always call a further meeting in compliance with the rules and then proceed to set aside the decision and then remake it. It then becomes legal. If a decision is made contrary to standing orders, although not contrary to the law, the council can proceed in a similar fashion and resolve to set aside the relevent standing order before re-making the decision. Any complaint should be made to the council concerned. I hope this helps.