How do I override the vocabulary template but only on a specific content type I have a vocabulary called "Sectors" and a content type called "News". Basically the vocab displays which sector the blog article is related to and links to the corresponding CMS page about that sector.

How do I customise the template that shows that vocabulary on my pages of that content type?

Many thanks.
I think you can make that with views :)

You have to create your views with the fields  you need. After that you will be able to theme them globally and locally.
check views's theme suggestion 

i hope it helped you