Assuming N 51 and W 000, the solution to the clues hidden in the following doggerel will point you to the Westing. For the Northing you will have to think in a counter direction. The actual cache is hidden 0.041 minutes S and 0.088 minutes E from the solution to the puzzle.
Jokes are not at all my style,
Enduring hardships most of the while;
And I’ve had to put up with such a lot,
Never really deserving what I got.
Victor made me exactly as I am,
Although conception rumours are a sham.
Love, death and dishonour are all around,
Just after confessing I went to ground.
Ever pursued, I was caught by my foe,
And though my number was up, he let me go.
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Now you can answer the question and find the cache!