Take it to a mechanic. If you have to ask for the forums opinion then you obviously need a professionals help. You could take a spanner to it but why bother when £5-£20 will easily cover the repair and have it set correctly rather than guessing by eye and risking snapping your non replaceable hanger off. Any decent mechanic will easily fix that in about five minutes. As a full time employed mechanic myself I know as I see this kind of thing all the time. Without the correct alignment tool, your gears will most likely never work properly again.
Take it to a mechanic. If you have to ask for the forums opinion then you obviously need a professionals help. You could take a spanner to it but why bother when £5-£20 will easily cover the repair and have it set correctly rather than guessing by eye and risking snapping your non replaceable hanger off. Any decent mechanic will easily fix that in about five minutes. As a full time employed mechanic myself I know as I see this kind of thing all the time. Without the correct alignment tool, your gears will most likely never work properly again.