Yes...it means, I think, that I will have to get it sorted before I put the house on the market. In my view, cosmetic or not, it visibly advertises 'bodge job done here'.
Thanks for the response.
It was placed at that angle when fitted, apparently there were difficulties getting it straight. Having done a bit more reading on the subject, I think no/insufficient supports were put in place when replacing the old large pot with the new smaller pot.
I have just had a cracked chimney pot replaced.
The new chimney pot is smaller than the old chimney pot.
I have noticed that the new chimney pot is leaning at a slight angle (refer photo).
I see it as a potential problem NOT a 'cosmetic problem e.g. a potential buyer seeing a leaning chimney...