Although we had little wind, we managed to get the fire going in the end. What you need is A: a farmer who know what he's doing (well - sort of ;-)), lots of paper and cardboard, and a little bit of liquid fuel, just to liven things up now and then.
Although one wouldn't believe it, this picture was taken late in the day around 4 pm - we had just piled the last lot to burn on and (as you can see in the picture) were enjoying the fruits of our labours (we needed that!). The last lot was reduced to ashes surprisingly quick - it was all burnt down by 5.30.
So we now have a nice, open hedge bank at top pond and our fishermen will hopefully be glad to have more space and less chance of getting their lines caught in any shrubbery!