Posted: 23/11/2012 at 13:42
Tying it to a cane should work, if you are carefull not to bend it so far it breaks.
Alternatively, as was suggested earlier you could prune the existing shoots, then next spring train one of the resulting new, softer shoots up a cane to become new leader. Hope it survives the ash die back, any signs of it in your part of the country (where?)