It's fine - it's just that the length of the answer is [perfectly legitimately] shorter than the surrounding downs.
Ovens as in those things in Kent that dry hops.
As per Iratus' comment, the inventor had essentially two areas of interest; the non-thematic one will be very familiar to anyone who was a child in the 70's and who now does Listener's - I'd be surprised if there was a single UK-based solver in their 50's who isn't at least passingly familiar with the alternate area of expertise [which, incidentally, the inventor claims earned them much more than their primary profession].