How to pronounce “simon heffer” in English

So I've been suggesting that lexicographers don't see themselves as arbiters of linguistic correctness but authors of usage guides very frequently do.So I'm thinking of works like Simon Heffer's "Strictly English" or Neville Gwynn's "Gwynn's Grammar," which set out to willfully misrepresentthe complexities of actual usage in order to reduce them to simple rights and wrongs.