A puzzle wot I wrote

It’s a long weekend in the UK at the moment, so I decided to create a puzzle for you to solve with the extra time. This is the style of puzzle you’d see at Puzzled Pint – which I’ve helped organise (and contribute puzzles to) in London in the past – where part of the puzzle is working out what you’ve got to do. If you like this style of puzzle, be sure to check them out at www.puzzledpint.com.

Please do share this puzzle on social media, it would be nice if the puzzle got a reasonable airing! If you like this sort of thing, and bad puns, then also follow me on twitter, @danielpeake.

I’ll post the answer tomorrow evening, tweet me if you’d like a hint in the meantime.

EDIT: Here is the answer with a brief explanation. Hope you enjoyed the puzzle!