Pandoc has a huge set of extensions which are not enabled by default and whilst Hakyll does enable quite a few in its own options (like footnotes), I wanted to add support for definition lists. In Hakyll, the best way to do this seems to be to implement a custom content compiler, as this can then be used everywhere you render content. This is exactly what I did. The first thing was to look up the reference to the default compilers and see what was already there. Hakyll provides: pandocCompile...
